# Critical Thinking/Math

145,977 results, page 39

1. ### Calculus III

Hi, this question is about Langrange multipliers. Given f(x,y) = y^2 - x^2, subject to the constraint g(x,y) = 0.25x^2 + y^2 = 1, find the max and mins. So I found the partial derivatives for both f(x,y) and g(x,y): fx = -2x fy = 2y gx = 0.5x gy = 2y And set them up for the ...
2. ### Calculus III

Hi, this question is about Langrange multipliers. Given f(x,y) = y^2 - x^2, subject to the constraint g(x,y) = 0.25x^2 + y^2 = 1, find the max and mins. So I found the partial derivatives for both f(x,y) and g(x,y): fx = -2x fy = 2y gx = 0.5x gy = 2y And set them up for the ...
3. ### IT

A project has been defined to contain the following list of activities along with their required times for completion. Activity No. Activity Time (Weeks) Immediate Predecessors 1 Colect requirements 2 - 2 Analyze processes 3 1 3 Analyze data 3 2 4 Design processes 7 2 5 Design...
4. ### 20th Century World History

I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my friend has chosen that ...
5. ### History/Global Affairs

Hi beautiful people! I'm working on an assignment talking about Australia's changing national identity in the EYES OF THE WORLD. I need to look at a particular event and or events as a way to highlight this change. The problem is that I was thinking the assignment related to ...
6. ### American History

The English civil war affected the american colonies in which of the following ways: a.) With england convulsed in civil war, the mother country for a time failed to provide military protection to the colonies b.) Several colonies began to discuss forming a confederation, but ...
7. ### biology

is anyone able to help i have to write 700 words on the subject of the metabolism of green plant cells in relation to energy exchange processes any guidance would be very much appreciated http://en.wikipedia.org/wiki/Photosynthesis http://en.wikipedia.org/wiki/Calvin-...
8. ### English

Can you please check these sentences grammatically? Thank you very much 1) Kurtz was torn between his desire to bring the light of white civilization to Africa and his boundless will-to-power and inordinate pride. 2) In the end, however, Kurtz had the courage to look into ...
9. ### English III

what is the rhetorical appeal in this sentence? Pathos or ethos? "A geek, according to Webster's New World Dictionary, is a street performer who shocks the public by biting off heads of live chickens. It is a telling fact about our language and our culture that someone ...
10. ### English

I left out the following sentences. Thank you. Where can I look for criticism on Poe's "The Pit and the Pendulum"? 1) While he is thinking of his near death, he hears a sound of trumpets and the walls rush back. General Lasalle has entered Toledo with his army and stopped the ...
11. ### Statistics

cant tell if i am on right track for this prababilitly hw assigment help would good! I was recently given a hw assigment dealing with the price is right's "money game". The contestant is shown nine cards on a board. Each card has one pair of numbers. One card has the first two...
12. ### case management

what are some similarities and differnces of case management in the community setting and in the managed care environment. As i see it, Case management has become a critical element in a community focused mental health system. Case management in the community is based on ...
13. ### production and operations management

5. All of the following statements about ABC analysis are true except: A. Inventory may be categorized by measures other than dollar volume B. It categorizes on-hand inventory into 3 groups based on dollar volume C. It is an application of the Pareto Principle. D. It states ...
14. ### Chemistry

A sample of pure cobalt-60 has an activity of 8 µCi. (t1/2 cobalt-60 = 5.26 a) (a) How many atoms of cobalt-60 are present in the sample? atoms (b) What is the mass in grams of the sample? g The way I approached part a was to first convert the microCi into Bq (for a value of ...
15. ### marketing

a manufacture of drinks, wants to add packaged fruit juices to its existing product line. the manufacturer needs to make some decisions regarding packaging and branding of the fruit juices. these decisions would fall under which variable of the marketing mix? a. product b. ...
16. ### Economics

There are 1,000 hot dog stands in Chicago at any given moment. Due to health concerns, a significant number of families move out of the city. Would there be a shift in the demand curve, the supply curve, or both? I'm thinking that if this significant number moves out of the ...
17. ### Physics-Please check-I've attempted it

Posted by Matt W on Tuesday, January 4, 2011 at 3:17pm. Calculate amount of energy needed to completely vaporize a 50g piece of 20 degree C silver melting point 1064 C L(f) = 64KJ/Kg Boiling point 2856C L(v) = 1645 KJ/Kg c= 0.13KJ/Kg degrees C I'm thinking I balance each side ...
18. ### Algebra

Please help with the below question. I think my answer is correct but not sure. The area of a rectangle can be found using the formula A=lw. The length of the rectangle is 14a6^b7^c13^ and the width of the rectangle is (7a9^b-3^c18^)2^ What expression represents the area of ...
19. ### Bioprocessing

A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type growth with a maximal specific growth rate of 0.4/h and an affinity towards ...
20. ### bio

What effect does glucose 6 phosphate have on cellular respiration? I am doing a bio lab using a respirameter (sp?) and am trying to come up with a question to test. I am testing the respiration of germinating seeds and was thinking something along the lines of "How does ...
21. ### world civilizations

Regarding trade and social change in Africa, which statement is true? A. The West Africa Squadron succeeded in obstructing about 30 percent of the African slave trade. B. The most important development in West Arica before European conquest was reliance on exporting salt. C. ...
22. ### social studies thinking works

When several stores in the same neighborhood sell the same video game system, what will likely happen? A. The price in the video game will increase B.the cost of production for video games will increase C.the price of video games will decrease** D.the supply of video games ...
23. ### Chemistry (Help+Check)

Completion 1)Kilogram 2) 3) The mass of one cubic centimeter of water at 4c is one ___1___. Scientists commonly use two equivalent units of temperature, the degree __2___ and the ____3___. You have the first considerably in error. I will be happy to critique your thinking. 1. ...
24. ### Thinking About What to Write About in an Essay

I'm writing an essay about charity (which means "In its widest and highest sense, charity includes love of God as well as love of man. The latter kind of love is so closely connected with, and dependent upon, the former, that neither it nor its fruits, under the Christian ...
25. ### Macroeconomics

Which of the following are not examples of a vicious cycle of deleveraging? Explain. a. Your university decides to sell several commercial buildings in the middle of town in order to upgrade buildings on campus. b. A company decides to sell its large an valuable art collection...
26. ### Physical Science

I've answered these two questions and need someone to check them for me: 1.Describe two characterisitics that light and sound have in common. Ans- They both transfer energy [and I need help thinking of a second one] 2.Describe two ways in which light and sound are different ...
27. ### electriacl safety

What are some important elements that should be included in any good training program. Explain. I will be happy to critique your thinking on this. If this subject isn't thoroughly covered in your text or class notes, you may find some helpful information in these search ...
28. ### Human Services Administrator

How do regular consultations between managers and their subordinates impact productivity and job satisfaction? That depends upon the nature of the consultations. If the managers are critical and micromanage, the job satisfaction and productivity usually goes down. If the ...
29. ### Preschool/Kindergarten

Which of the following is a reason why kindergarten was started in the United States? a. Kindergarten was designed to be affordable to most people. b. Kindergarten was designed to be universally available for all. c. Kindergarten was designed to make a difference in the later ...
30. ### chemistry

If a 0.10 M solution of silver fluoride, AgF, is mixed with a 0.10 M solution of barium acetate, Ba(C2H3O2)2, a pecipitate (ppt.) forms: AgF + Ba(C2H3O2)2--> ppt. In order to identify the precipitating ions, you conduct some experimental tests. a) what is the purpose of ...
31. ### Physics (Science)

Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a push-up, and the second is pushing a ...
32. ### measurements

A cone and a cylinder have the same volume and the same base radius. If you are given only the height of the cylinder, is it possible to figure out the height of the cone? If so, how would you figure it out? Am thinking yes, because if they are the same in volume then the ...
33. ### Spanish-Please check SraJMcGin

When I say four thousand houses in Spanish, is it gender dependent like cuatra mil ollas or do I simply say cuatro mil ollas. I know the numbers from 200-900 are gender dependent but I'm not sure when you get to the four in front of thousand houses because casa is feminine-I'm...
34. ### algebra

can someone please help me solve this problem? The halftime period at a football game is 30 min long. The cheerleaders have to perform before and after the band; however, the band plays 5 min longer than the cheerleaders dance. How long does each group perform? I am thinking ...
35. ### Physics

A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the endzone into the other player at 5 m/s to try and stop him. They collide at the goalline and the tackler holds on to the player diving into the endzone. ...
36. ### microeconomics

Michelle has 200lbs of potatoes and 50 cchickens. James has 80lbs of potatoes and 40 chickens. what is Michelles opportunity cost of producing potatoes and opportunity cost of producing chickens? Same for James. Which person has an abosolte advantage in which activities? ...
37. ### Apchemistry

Thank you for your help Why is solid copper (I) nitrate a poor conductor? I know that CuNO3 is an ionic solid, so maybe (please check me on this) the electrons in CuNO3 are exchanged in the formation of electrostatic attractions found within ionic solids, so the electrons ...
38. ### Statistics

Which of the following statements is not true about samples that can be treated as matched pairs data? I. Data collected on these samples is analyzed by calculating the differences between paired observations and using that data in one sample tests. II. Each value in the first...
39. ### Chemistry

Element X and fluorine react to form two different compounds. In the first reaction 0.480g of X reacts with 1.000g of F. In the second, 0.960g of X reacts with 1.000g of F. What are the possible formulas for the two compounds? (Multiple choice) a. XF (for 1st compound) X2F2 (...
40. ### Algebra

Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: a. 2, -2/5 b. -2, 2/5 c. 2/5, 2 d. 2/5 , -2 Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: In y=mx + b, b is the y intercept, and m is the slope. Here...
41. ### science

Which option correctly demonstrates scientific thinking in practice? The lava flowing from a volcano is very hot because its temperature has been measured to be over 1,000 ºC. The lava flowing from a volcano must be very hot because it is a liquid. The lava flowing from a ...
42. ### science

Which option correctly demonstrates scientific thinking in practice? The lava flowing from a volcano must be very hot because it is a liquid. The lava flowing from a volcano must be very hot because the majority of scientists agree that it is very hot. The lava flowing from a ...
43. ### chem

Calculate the pH of 0.20 M NaCN solution. NaCN ---> Na+ + CN- CN- + H20+ ---> HCN+ + OH- Initial conc. of CN- = 0.20 mol/L change = -x equillibrium = 0.20-x HCN equill. = +x OH equill. = 1x10^-7+x Ka= 6.2 x 10^-10 Kb = KW/Ka = 1x10^-14/6n2 x 10^-10 = 1.6 x 10^-5 1.6 x 10...
44. ### More of an ethic question. . .

A long time ago, about 3 years back, our mario kart DS cartridge got lost in our friends house. I just remembered about some days ago and talked to our friend, thinking the game was lost in the street. But then our friends says that he found it in the floor of his house and ...
45. ### yes or no question

hi i have to do a project where i have to find media bias between two articles for government. and i was wondering if it is okay if i could just post little pieces of those two articles and ask for help. when i read the two articles, it doesn't seem like it's bias but i just ...
46. ### Chemistry

delta T = ikfm delta T is the amount f.p. is lowered. i is the number of particles; i.e., Na3PO4 will have i = 4 (3 for Na and 1 for PO4). m is molality. k is a constant and need not enter into the calculations. Arrange the following solutions in order of decreasing freezing ...
47. ### Statistics

2.) Car insurance companies assume that the longer a person has been driving, the less likely they will be in an accident, and therefore charge new drivers higher insurance premiums than experienced drivers. To determine whether driving experience is related to the amount of ...
48. ### Physics

Hello everyone, I have made measurements of the periods of a pendulum attached to a stationary point at a certain height h. When plotting the periods as a function of the square root of the length minus the height it gives us a straight line. I now need to prove that this line...
49. ### statistics please

Experience in investigating insurance claims shows that the average cost to process a claim is approximately normally distributed with a mean of \$80. New cost-cutting measures were started and a sample of 25 claims was tested. The sample mean of the costs to process these ...
50. ### statistics

Experience in investigating insurance claims shows that the average cost to process a claim is approximately normally distributed with a mean of \$80. New cost-cutting measures were started and a sample of 25 claims was tested. The sample mean of the costs to process these ...
51. ### management

Can someone give me their opinion of my answer if its correct or wrong please when someone has a few minutes thanks. Which of the eight steps in the decision-making model could be eliminated if a decision had to be made quickly? 1. Be alert to indicators and symptoms of ...
52. ### Please check my Caclulus

1. Find all intervals on which the graph of y=(x^2+1)/x^2 is concave upward. A. (negative infinity, infinity) B. (negative infinity, -1) U (1, infinity) C. (negative infinity, 0) U (0, infinity) D. (1, infinity) E. none of these I got C. I found the second derivative and used ...
53. ### English

Identify the choice that best describes the underlined word. 1.) Masako took Jonah's woolen hat by mistake, thinking it was **hers** a.) First-person pronoun b.) Second-person pronoun c.) reflexive pronoun d.) posessive pronoun D. 2.) The children went to look for their toys, ...
54. ### Social Studies

Why were Northern states in favor of Hamilton's protective traffic? The traffic protected the North from paying any additional fees when exporting their goods. The traffic allowed manufacturers in the North less expensive than imported goods. The traffic made goods produced in...
55. ### english

Read Article IX of the United States Bill of Rights: The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people. What is the main effect of setting the phrase of certain rights off with commas following the...
56. ### physics

A child slides down a slide with a 28° incline, and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child Height= length/sin28 energy ...
57. ### english

Read Article IX of the United States Bill of Rights: The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people. What is the main effect of setting the phrase of certain rights off with commas following the...
58. ### management

Today, many organizations and managers face new challenges on a daily basis. One critical aspect of the skills that managers lack is planning. You have been asked by your manager to conduct a preliminary search of recommending the two most common types of contemporary planning...
59. ### physiology

A patient is breathing rapidly and slurring her speech. Shortly after, she becomes comatose. Tests show her blood glucose and ketone levels are high. She has been urinating eery few minutes prior to her becoming lethargic. What is the patients problem? Would you expect her ...
60. ### language arts

abc order for geology geography geologist graphite autograph photograph biopsy biology biosphere transact enact actor react import transport portable export When you get them in ABC (alphabetical) order, please re-post and we'll let you know how you did. A good dictionary ...
61. ### Maths (Investments)

Kate is thinking about investing \$60 000 for 4 years. She deposits her money into an account which earns interest paid semiannually at a rate of 7% p.a. After 2½ years, the interest rate drops to 5.6% p.a. and stays constant for the remainder of the investment period. Use ...
62. ### Maths Investments

Kate is thinking about investing \$60 000 for 4 years. She deposits her money into an account which earns interest paid semiannually at a rate of 7% p.a. After 2½ years, the interest rate drops to 5.6% p.a. and stays constant for the remainder of the investment period. Use ...
63. ### Chem

I did an experiment were I added some water and KHP into a beaker and phenophalene [sp?]. It was a titration lab. We slowly added calciuum hydroxide into the beaker and waited till the solution turned into a faint pink. The question is asking me to find the number of mols of ...
64. ### Statistics

I neep help on two questions! A condition that occurs in multiple regression analysis if the independent variables are themselves correlated is known as: 1. autocorrelation 2. stepwise regression 3. multicorrelation 4. multicollinearity (I think this is the answer) Multiple ...
65. ### TO ALL STUDENTS

... including "inverkeithing high school" [see #s 2 and 4] -- Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her ...
66. ### English

I really need to have a look at the first stanza of Owen's poem as I'm unsure of tense choice. Thank you. 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as prematurely old and weak. 2) ...
67. ### business lowercapstone

Assignment Type: Individual Project Deliverable Length: 4-5 body pages, 1 PERT chart, 1 Gantt chart Points Possible: 185 Due Date: 4/22/2012 11:59:59 PM CT Using your current work organization (or an organization of interest) as the subject matter, research the elements of ...
68. ### Chemistry

A student titrates a 25.00 mL sample of HCl. If 20.50 mL of 0.175 M of KOH is required to reach the end point, what is the concentration of the HCl? 25.0 mL HCl x 1L/1000 mL x 0.175 M/1 L = 0.004375 mol HCl 0.004375 mol HCl/20.50 mL KOH x 1000 mL/1 L = 0.213 M HCl (I'm ...
69. ### TO REINY

I don\'t follow your thinking If the do, it is an easy problem. draw a line from the vertex through the two centres. Let the distance between the vertex and the centre of the smaller circle be x then the distance from the vertex to the centre of the larger circle is x+6 sin (...
70. ### english

I need help explaining why the answers i have are correct. i am stumped please help me! Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix V by entering the correct sentence choice (a or b) for each number as well ...
71. ### Critical Thinking

Identify any examples of fallacies in the following passages. Tell why you think these are fallacies, and identify which category they belong in, if they fit any category we’ve described. 1.Letter to the editor: “Andrea Keene’s selective morality is once againshowing ...
72. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
73. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
74. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
75. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
76. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
77. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
78. ### science

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
79. ### Algebra II Help

4) The function f(x)=2(3)^x represents the growth of a dragonfly population every year in a remote swamp. Rose wants to manipulate the formula to an equivalent form that calculates seven times a year, not just once a year. Which function is correct for Rose’s purpose and ...
80. ### Algebra

For what value(s) of b will x^2 + bx + 3 have exactly one root? I'm rather new at this but wouldn't b=2*sqrt(3) give (x+sqrt3)2 as factors and that would give one root? Check my thinking. for a quadratic equation to have exactly one root, the discriminat must be zero i.e if ...
81. ### cultural diversity

Would (C)contractual commitment with the families or (D)cross-cultural competence be the best answer for this question? Ms. Harris's new class includes two Native American children,about whose families and tribe she gathers more information. Her use of home and community ...
82. ### Science

I am writing a mock biotechnology research proposal for class and I don't know what I should make this research plan about. What are some of the most breaking scientific news, or diseases and issues in this field(biology preferred, or chemistry) that are currently having an ...
83. ### Cultural Diversity

Can someone please help with this question on my assignment? A culture's emphasis on autonomy or dependence impacts adult-child interaction. Of the following choices, the ____________cultures are most closely aligned in valuing dependence or autonomy. A. Asian and Mexican-...
84. ### micole

White light strikes a diffraction grating (930 lines/mm) at normal incidence. What is the longest wavelength that forms a second-order maximum? I used the equation [(1/d)sin(90)]/m = wavelength: [(1/0.93m)(1)] /2 = 0.5376m. To convert to nm I multiplied by 10^-9. This is ...
85. ### Math - Geometry

Two right triangles are touching at the tips. The left triangle has the 90 degree angle to the bottom left, and 33 degrees on the bottom right. Based on this info, the other angle is 57 degrees. The right triangle has the right angle given, but it is on the top right, and the ...
86. ### Physics-Please check

Which of the following confirms that gravitational mass and inertial mass are equal? I posted this about three hours ago and no one answered it so I'm hoping someone can look at my answer and direct me 1.Free-fall accleration is the same throughout the universe 2.Free fall ...
87. ### Chemistry

Which of the following molecules has a double bond? 1. NO3- 4. H2 2. C2H4 5. C12 3. SO2 6. None of the previous answers I got that three of these molecules have a double bond (NO3-, SO2, and C2H4), but the answer is one. I am thinking that maybe the professor wants C2H4 ...
88. ### Physics

Two cars lost in a blinding rainstorm are traveling across a large field, each thinking they are on the road. They collide. If the distance between them is 174 meters and the red car is traveling at 6 mph at a 45 degree angle toward the impact point, and the blue car is ...
89. ### ap chem0 frequency

how do u do this type of problem... What is the frequency of a photon with a wavelength of 2.25 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 Js c = fw. c is speed of light which you have, f is frequency for which you must solve, w ...
90. ### accounting

Three objectives of a company's internal control system should be safeguarding assets, checking the accuracy and reliability of accounting data, and promoting operational efficiency. A fourth objective of a company's internal control system should be: 1.Preventing embezzlement...
91. ### English

How does an individual struggle to gain freedom against the restraints of society? How should I answer this essay question? Could you direct me on how to answer this essay question? I was thinking about how individuals rebel against society to gain freedom, but I think this is...
92. ### Strategy

How are the tactical plan and the goals related to long-term objectives (LTO) and Critical Success Factors in your experience? IDK How can you be successful in reaching goals, if you don't define what your goals are and develop specific methods for reaching those goals? ...
93. ### statistics

A woman and her son are debating about the average length of a preacher's sermons on Sunday morning. Despite the mother's arguments, the son thinks that the sermons are more than twenty minutes. For one year, he has randomly selected 12 Sundays and found an average time of 26....
94. ### physics

Your friend weighs 145 lb. What is her mass in kilograms if she went to the moon where the acceleration of gravity is 1/6 that on earth? i know that her weight in newtons is 652.5, and that her mass in kilograms is 65.25, and that her weight in newtons if she went to the moon ...
95. ### !!!!!ENGLISH!!!!!

Help! My teacher did not explain the lesson of particles very well. Please check. I will type the particle out to the right of the sentence and capatilize the participal phrase. 1. Defeated teams should not make excuses for their loses. Defeated 2. The actor, HUMBLED BY THE ...
96. ### Physics..=> drwls - I need your help

I need help seeing if my thoughts are correct and how to do some things. Block 1 of mass 0.200 kg is sliding to the right over a frictionless elevated surface at a speed of 8.00 m / s. The block undergoes an elastic collision with stationary block 2, which is attached to a ...
97. ### english --please help

What,if anyhting,is wrong with the following sentence. Being unable to type the letter,the boss fired me. A. PROPERLY CONSTRUCTED SENTENCE B. COMMA SPLICE C. FRAGMENT D. DANGLER I AM THINKING THE CORRECT ANSWER IS (B)comma splice AM I CORRECT? IS THIS A DANGLER. Yes, it's a ...
98. ### chemistry

what is the chemical equation for citric acid + sodium hydroxide? I will be happy to critique your thinking . Remember a salt and water will be formed. is it : C6H8O7 + 3NaOH--> NaC6H5O7 + 3H2O ? I would have written citric acid in this form H3-C6H5O7, and sodium citrate as...
99. ### Chemistry

Hi! I am having some trouble with this question, can you please help me? Which of the following describe chemical properties? Check all that apply. - Iodine (a purple solid) becomes a purple gas. - Titanium is less dense that iron . - Water freezes at 0'C - Sugar burns in air ...
100. ### English

Choose the correct word to complete each sentence. 1. Despite wanting to pass the exam, Julia just couldn't get down to revising. She seemed to have a mental ___ about it. a. brick b. gap c. block d. space 2. When the counsellor listened to George's problems, her non-...