# Posts by Charlotte

Total # Posts: 222

**Chemistry**

What quantity of sulfur will exa tly react with 128g of oxygen gas to form sulfur dioxide

**Math**

ans. 78%

**Maths**

THERE IS NO SOULITION!

**Science Chemistry**

LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...

**Science Chemistry**

LIST: SODIUM CARBONATE. CALCIUM CARBONATE. ZINC SULFATE. ZINC NITRATE. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation for the ...

**Science Chemistry**

LIST: Sodium carbonate. Calcium carbonate. Zinc sulfate. Zinc nitrate. (a) State a pair of chemicals from the list above that can be used to prepare zinc carbonate by a precipitation reaction involving mixing 2 aqueous solutions together. (b) Write a chemical equation reaction...

**Astronomy, Math, Science**

If the Sun is at 57 degrees altitude at 12:18 pm on Sept. 1, 2016 and I held a pen that is 7 inches long in the sky, how long would its shadow be?

**Physics**

A ship is heading North at 15 km/h in a tide moving a 6 km/h westward. Determine the magnitude and direction of the resultant velocity of the ship.

**Math**

A bus holds 32 passengers. 150 people want to go on a bus trip. How many buses are needed? And how many empty seats are there?

**Architecture**

Can contemporary and gothic architecture coexist?

**English**

"The statement ‘crime is socially constructed’ is very vague in that it could be argued for hours and in hundreds of pages of information on the subject. To put it simply, crime is constructed by the use of social laws, and the decisions of those with power, to ...

**math**

system of equations x = # of ppl in 1st country y = # of ppl in 2nd country x + y = 44456 x = 8368 + y should be 26412 and 18044

**math**

then you could try 8, if the question is asking you to only double the slope

**math**

assuming you have to double both the slope and y-intercept, you are CORRECT (the question's wording wasn't overtly clear)

**Math**

first, name your variables x = # of students in 1st country y = # of students in 2nd country then create a system of equations x + y = 63,172 x = y + 7306 Now solve the equations by substituting the x value in the first equation. You should get 35239 people in the first ...

**8th grade math**

how would I graph a slope of 0.2 and a y intercept of 0.3? I know that y intercept is up and down, and the slope is rise (up)over run (across) , but I am confused because of the decimal format. Thank you, I asked mom but she doesn't know either, and I couldn't find ...

**pre algebra 8th grade(0, 0.3), (1, 0.5), (2, 0.7),**

how would I graph a slope of 0.2 and a y intercept of 0.3? I know that y intercept is up and down, and the slope is rise (up)over run (across) , but I am confused because of the decimal format. Thank you, I asked mom but she doesn't know either, and I couldn't find ...

**Economics - PLEASE CHECK ANSWERS**

We are supposed to use our notes on the topics and the Internet to help us in our understanding of the course. I just needed to be pointed in the correct direction as to know where to look for these questions! There were multiple more that I was able to answer with my ...

**Economics - PLEASE CHECK ANSWERS**

Thank you so much, Writeacher, for the helpful resources!

**Economics - PLEASE CHECK ANSWERS**

i must be in the same class as Taylor because this is the first question I have posted. it is an online class. are my answers correct? i looked for a long time to try to find them.

**Economics - PLEASE CHECK ANSWERS**

my answers are: 1. B 2. A 3. C 4. A 5. B 6. D

**Economics - PLEASE CHECK ANSWERS**

1. The main advantage to a corporation is.. A. Ease of entry B. Limited liability for the owners C. Dividends all go to one person D. Owners share managerial duty (I chose B) 2. The main advantage to a sole proprietorship is.. A. Ease of entry B. Financial capital is easy to ...

**math**

The areas of two similar triangles are 16 and 25. What is the ratio of a pair of corresponding sides?

**Physics**

Real world trampolines lose energy since they are damped springs with much internal friction. How much energy does the sumo wrestler lose on each bounce in this situation? Information I was given: mass=400 kg gravity=10N/kg k = 12000 N/m I also know from the previous question ...

**Math (Calculus - Limits)**

Find the constant c so that lim x->8 x^2+2x+c/x^2-15x+56 exists. For that value of c, determine the limit. (Hint: Find the value of c for which x-8 is a factor of the numerator). I understand that I should set (x-8)(x+b) equal to x^2+2x+c but all the variables are getting ...

**math**

20 5x4 (5 is odd, 4 is even)

**math**

I have 4 spinners each divided into 4 equal sections (labeled 1,2,3,4,) what is the probability of not all same? i have tried multiple ways of doing this and get different results and i don't know what is correct. I have tried 1/4*1/3*1/2*1 and got 1/24 but i know this is ...

**chemistry**

i got it, it's 0.111M!

**chemistry**

A student is asked to standardize a solution of barium hydroxide. He weighs out 0.986 g potassium hydrogen phthalate (KHC8H4O4, treat this as a monoprotic acid). It requires 27.8 mL of barium hydroxide to reach the endpoint. A. What is the molarity of the barium hydroxide ...

**littlten elermenrty**

454 because if 4 is in the ones place, 4 would be in the hundreds place. 10’s place is 50 but there is a 4 in the ones place so, 454.

**Technology**

For number 2 I meant to say D

**Technology**

1. To insert clip art into a document, what step should I take after I find the clip art I want to insert? A. Use the scroll bars to find more choices of clip art B. Click on the clip art image C. Click on the clip art button D. Click the Insert tab at the top of the screen** ...

**chemistry**

Why is filter paper a poor material on which to powder a solid before introducing it into a melting tube?

**Science**

Solution sorry

**Science**

A man enters an elevator holding two boxes-one on top of the other. The top has a mass of 6.0 kg and the buttom box has a mass of 8.0 kg. The man sets the two boxes on a metric scale registers a value of 166N; this is the upward force upon the bottom box. Determine the ...

**Science**

Thank you

**Science**

An unbanked curve has a radius of 80.0 m. What is the naximum speed at which a car can make the turn if the coefficient of static friction is 0.8?

**biology**

Lymphocyte

**American Government**

The source of the Supreme Court's authority is Moral suasion Judicial activism Concurring opinion Dissent My answer: judicial activism

**physics**

If a mass of gasoline occupies 70.01 at 20°C, What is the volume at 35°C?

**Chemistry**

How to Prepare a 50 mM pH 6 Citrate buffer starting from citric acid as the sole source of conjugate base.

**Chemistry**

How to perform a pH Titration of 25 ml of 50 mM Phosphoric acid from pH 1 to pH 13 with 1 N NaOH (including standardizing the NaOH).

**Chemistry**

Thanks for that information but how do you do a pH vs Temp graph for this? Because, I need to do the calculations and a graph of pH vs Temp? (Even if it's just an example or formulas it'd be very helpful and well appreciated.)

**Chemistry**

Well neither did my teacher that's why I'm confused to begin with.

**Chemistry**

How to make 100 mL of 100mM of Tris HCl and 100 mL of 100mM of Tris Base. Follow the pH of the resulting combined solution as it is heated from 0 to 50 degrees Celsius.

**Physics 10 (helppp please) thannnks**

A sagging floor is jacked up and a steel girder 10 ft long whose cross sectional area is 6in^2 is put underneath. When the jack is removed, a strain gauge shows that the girder has been compressed by 0.0080in. Find the weight the girder is supporting in lbs and tons.

**Physic**

The right hand rule is used to determine the direction of the magnetic force on a positive charge.

**Physics**

Thanks, so that's why I cant solve it. :(

**Physics**

a wire 100 cm long and 0.2 cm in diameter is suspended from a support. a 10 kg mass is hung from the lower end of the wire. a find the stress b find the strain c young's modulus of elasticity

**Physics grade 10**

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.

**college algebra**

A rectangle picture frame has a perimeter of 1800 centimeters and a width that is 300 less than its length. Find the area of the picture.

**maths**

maria gave two fifths of her stickers to susan but still had 18 left. how many did she give susan. thats my homework question and i don't understand how i find out the answer

**Chemistry**

The boiling point of diethyl ether CH3CH2OCH2CH3 is 34.500C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is cholesterol . How many grams of cholesterol, C27H46O (386.6 g/mol), must be dissolved in 208.0 grams of diethyl ether to raise the ...

**algebra**

Jim has some nickels, dimes and quarters worth $5.30. There are five times as many dimes as quarters, and six more nickels than dimes. How many of each kind of coin does he have?

**trigonomertry math**

If cos A=1/3 and tan A<0,determine the value of 2sin A+tan A without the use of a calculator

**Language Arts - Grammar - please check answers**

is #4 'was'? is #6 'was'? is #7 'day'? is #10 "Mr. Hynes'?

**Language Arts - Grammar - please check answers**

1. Michelle Kwan has become an inspiration to us all. 2. Is Sara the runner in the blue T-shirt? 3. I could have been a contender. 4. The winner of the spelling bee was Tracy. 5. The next speaker will be Mr. Gonzales. 6. Who was the fourteenth president of the United States? 7...

**Language Arts - Grammar - please check answers**

thank you!

**Language Arts - Grammar - please check answers**

okay thank you! Are these the correct Predicate nominatives? 2. president 3. "Night and Day" 4. champion 5. one 6. part

**Language Arts - Grammar - please check answers**

Identify the linking verb and the predicate nominative. 1. My partner for biology lab is Penelope. 2. Jason will be the next student council president. 3. Mrs. Furillo's favorite song is still "Night and Day." 4. Rocky Marciano was the world heavyweight boxing ...

**science(check answers)**

yep. 100%.

**Science**

What is the origin of volcanism?

**Algebra help ASAP please**

thank you!

**Algebra help ASAP please**

For #1, i cannot figure out what 2x^2 - x - 1 factored is

**Algebra help ASAP please**

Simplify. 1. x^2 - 1/2x^2 - x - 1 2. x^2 - 16/x^2 - 6x + 8 3. 6x^2 + 4x/2x^2 + 4x My answers: 1. ??? 2. x+4/x-2 3. 3x?

**Algebra help ASAP please**

simplify each expression. 1. 6/2b - 1 minus 4/b - 1 2. n-6/2n + 2 plus 4n/3 3. 4/6x^3 - 12x^2 minus x - 3/6x^3 - 12x^2 please explain how to do these!! thanks

**Algebra 1**

Simplify each expression. 1. 2x + 10/x+5 2.x^2 - 25/3x - 15 3. x^2 + 4x/x^2 - 9x 4. n^2 + 7n + 10/ n^2 + 2n - 15 Please explain how to do these I don't understand!

**social studies (CHECK ANSWERS)**

thank you brooke! 6/6 100%!

**Science help please!**

1. The relationship between temperature and volume is known as what law? 2. What is the relationship between temperature and pressure? (directly proportional or inversely proportional) 3. The relationship between volume and pressure is known as what law? My answers: 1. Charles...

**Math help please**

1. The ordered pairs (0, 1), (1, 4), (2, 16), (3, 64), and (4, 256) represent a function. What is a rule that represents this function? y = 4^x y = 4x y = x^4 y = x + 4 2. Consider the relationship between the height of a tree and time. Time would be considered which of the ...

**Language Arts help last questions please**

Hm, I guess I will go over these phrases more. Thanks for your time

**Language Arts help last questions please**

Identify the italicized word(s) in each sentence. 17. Going outside during a thunderstorm is not the wisest thing to do in the summer. (*Going outside during a thunderstorm* is italicized) gerund phrase participal phrase infinitive phrase prepositional phrase 18. Following the...

**Language Arts help please**

thanks!

**Language Arts help please**

Choose the word(s) that the italicized phrase modifies or describes. 1. According to this map, the smallest region in the United States is New England. (*is New England* is italicized) map smallest region Unted States 2. DynaTAC800X, the nation's first cell phone, was ten ...

**Math help please**

are the answers: 1. A(n) = 12 + (n - 1)(6) 2. 2

**Math help please**

1. Each time a touchdown is scored in a football game, 6 points are added to the score of the scoring team. A team already has 12 points. What rule represents the number of points as an arithmetic sequence when n is the number of touchdowns scored? A(n) = 12 + 6n A(n)12 - (n...

**Math help please**

1. At midnight, the temperature, t, is 13 degrees below zero. If the temperature is expected to rise 5 degrees for the next several hours, what equation could you use to determine what temperature it will be after h hours? T = -13h + 5 H = 5t + 13 T = 5h -13 T = 5h + 13 My ...

**algebra**

The answer is the first choice because: 0 * 6 = 0 1 * 6 = 6 2 * 6 = 12

**Math help please**

1. The ordered pairs (1, 1), (2, 8), (3, 27), (4, 64), and (5,125) represent a function. What is a rule that represents this function? Y = x Y = 4x Y = x^2 Y = x^3 I don't know how to solve this please help!

**Health**

9. Kristy, a 13-year-old girl, has a resting heart rate of 67 beats per minute. Using the lower and upper limit reserve training percentages of 50 percent and 85 percent respectively, what is Kristy’s target heart rate range? 137 to 186 per minute 140 to 194 per minute ...

**Math**

Ok got it thanks!

**Math**

1. The US Senate is composed of 2 senators from each of the 50 states. For a treaty to be ratified, at least two-thirds of the senators present must approve the treaty. Suppose all senators are present and 48 of them have voted in favor of a treaty. What are the possible ...

**Math help**

1. Which value is a solution of the equation 5 - 4x = -3 0 2 -3 1/4 2. Which ordered pair is a solution of the equation y = x - 4 (2, 6) (6, 2) (-2, 6) (3, -1) 3. Which ordered pair is a solution of the equation y = 3x (-2, -9) (-8, -18) (-8, -3) (-10, -30) 4. Which ordered ...

**Social studies help please**

Thanks!

**Social studies help please**

1. Great early American civilizations built large cities In Central and South America In Alaska On the plains of North America In Asia 2. Spanish explorers first arrived in the Americas In the nineteenth century In the late 1400s In the late 1500s In the seventeenth century 3...

**Math help please**

1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3/4b 2. Solve for y, then find the value of y when given x = 2. 6x = 7 - 4y -12 7/4 19/4 24 I need help solving these. Can you please explain how to solve these problems?

**Math help!**

I know this is kinda late but thank you!!! That is correct I got my paper back today thanks!

**Math help!**

1.(g + 4) - 3g = 1 + g 1 4 No solution Identity 2. 5y + 2 = 1/2(10y + 4) 5 10 No solution Identity 3. 0.5b + 4 = 2(b + 2) 0 0.5 No solution Identity 4. -3x + 5 = -3x + 10 5/6 -5/6 No solution Identity My answers: 1. 1 2. Identity 3. 0 ??? Not sure 4. No solution I really need ...

**Language arts help please**

Thanks!

**Language arts help please**

Hm ok. So maybe the answer is multilegged and kitchen? Is that correct?

**Language arts help please**

1. Identify the adjectives in the followig sentence. You can choose more than one answer. After a rainfall, bugs, slugs, and all sorts of multilegged critters would descend from the ceilings and fall on the kitchen table, or worse, on our bunks. Rainfall Sorts Multilegged ...

**SS**

Yeah wow I got all my answers right. 5/5 (100%)

**Math last question i promise**

Thank you so much!

**Math last question i promise**

*didn't

**Math last question i promise**

Well, at first I din't know how to simplify it, but I think I figured it out. Does m = 60?

**Math last question i promise**

I have another problem: Solve this equation: $19.95 + $.99m + $65.32 = $144.67 I swear this is the last question! I'm sorry I am asking so much, I just need a little help.

**Math help please last question**

Thanks!

**Math help please last question**

I have another problem: Solve this equation: $19.95 + $.99m + $65.32 = $144.67 I swear this is the last question! I'm sorry I am asking so much, I just need a little help.

**Math help please last question**

Sorry I forgot to enter my name x is equal to 26. x = 26

**Math help please last question**

Solve the equation. 10. 2(4x -4) + 2(3x + 2) = 360 Can you please help me on this problem? Could you explain it please? I'm confused...