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Posts by Kate

Total # Posts: 2,023

chemistry
Consider the following reagents: zinc, copper, mercury (density: 13.6 g/mL), silver nitrate solution, nitric acid solution. a. Given a 500-mL Erlenmeyer flask and a balloon can you combine two or more of the foregoing reagents to initiate a chemical reaction that will inflate ...

intro to psychology
i think the only one wrong is c, am i correct

Spanish
Thank you Sra.

Spanish
The questions were recordings, this was the best I could gather from the recordings. The answers were multiple choice. 1. ¿Cantar en el coro el año pasado también? A. No, no sé tocar ningún instrumento. B. No. Yo era una de las solistas. C. S...

help please
19.B 20.C 21.B 22.C

help please
19. Identify the statement that is a verifiable fact. (1 point) Kids need to avoid excessive time in front of a computer. Laptop computers outsell desktop computers in retail sales. Most computer applications are designed for learning purposes. The elderly should avoid using ...

help please
16. B 18.D

help please
16. Which of the following is used when a political activist reminds others of the trials and tribulations facing the nation if change does not occur? (1 point) ethos pathos logos 18. Identify the sentence that relies most strongly on emotional language. (1 point) If this ...

please help asap
can u help and give me feedback please Literary Analysis of Song of Becoming. Song of Becoming by Fadwa Tuqan is talking about growing up. Becoming legends. It’s about what happens after growing up. It starts off with “…they are only boys who used to frolic and ...

english
can u please take a look

english
i need help checking this paper can you please give me feedback Literary Analysis of Song of Becoming. Song of Becoming by Fadwa Tuqan is talking about growing up. Becoming legends. It’s about what happens after growing up. It starts off with “…they are only ...

english
so its A

english
i think its B

english
10. Read the following paragraphs from "Saboteur." Mr. Chiu and his bride were having lunch in the square before Muju Train Station. On the table between them were two bottles of soda spewing out brown foam and two paper boxes of rice and sautéed cucumber and ...

Math
What is “a, b and c” in this hyperbola? (y-2)^2/5-(x-3)^2/6=1

Spanish
These were recordings that I had to interpret and decide whether they are Past, Present, or future. I'm not sure on the first one which form it is I was hoping you could help me decide which sounds better. Thank you. 1. Se (celebra/Celebré) La feria de Abril cara ...

Math
Finish the following to make a perfect square. 1.) x^2+sqrt3x+______ 2.) x^2+4x+_____

Physics
hn

Calc 2
I need help finding the limit of the following sequence or determining that the limit does not exists {csc^(-1) 11n}

Geometric Series
Evaluate the geometric Series or state that it diverges lower bound k= 1 upper bound = infinity E (sum symbol) E 5(-1/6)^(5k) I know it converges but im not sure to what

Limit of Sequence
I need help finding the limit of the following sequence or determining that the limit does not exists {csc^(-1) 11n}

math
a recipe calls for 2/3 cups of chocolate chips, how many batches can be made with 6 cups of chocolate chips?

Chemistry
The next question is, how may grams of CO2 will be produced as a result?

Chemistry
20.00mL of 0.55M CH3COOH solution is mixed with 9.95mL of 1.0M NaHCO3 solution. The reaction occurring is CH3COOH + NaHCO3 --> CH3CHOO + Na + H2O +CO2. Which is the limiting reagent in this reaction?

Chemistry
A standard of red dye was prepared in the following manner: 4.5mL of 0.100M of food dye was added to a test tube and 5.5mL of water was added. What was the final concentration of food dye in the test tube?

Math
Manuel earns $400 per week plus a 3% commission on everything he sells. Write and solve and inequality to find out how much he must sell to have a weekly income of at least $700.

Health and Physical
thanks for the help :)

Health and Physical
It was neurons

Health and Physical
The structures responsible for carrying information all over your body are? A. Muscles B. Alveoli C. Neurons (D). Blood Cells

Calc 2 Indefinite Integrals
Can someone help me with these? dx/(x sqrt(x^3 -1) using x^3 = 1/z^2 i.e z^-2/3 it x(third power)- 1 just to be clear. dx/(x(a+bx^n)) using x^n = 1/z i.e. x= z^-1/n Thank You for the help!

Math
14. A. 19/36 B. 5/12 C. 17/36 D. 2/3

Math
1.What is the volume of the figure above if a = 6 units and b = 9 units? A. 1,620 cubic units B. 540 cubic units C. 324 cubic units D. 342 cubic units 2.Susan is building a cage for her rabbit and started by making the supports for the cage as shown below, where a = 14 inches...

Math
The figure only has two measurments

Math
There isnt one Ms. Sue

Math
What is the volume of the figure above if a= 6 units and b= 9 units? A. 1, 620 Cubic Units B. 540 Cubic Units C. 324 Cubic Units D.342 Cubic Units

help please
can u help ms sue

help please
7. Which of the following could be represented by the classifier that uses the “3 handshape” placed on its side? (1 point) airplane math notebook headphones sports car 8. Which classifier would not be used to indicate lines or stripes of some type? (1 point) CL:G (g ...

help please
i have questions

help please
can someone help me in sign language if they can't please write back a reponse

Science
Which of the following illustrates mechanical weathering? 1.Carbonic acid weathers marble and limestone. 2.As plants grow, they produce weak acids that slowly dissolve rock. 3. Oxidation causes weathering in rock. 4. Repeated freezing and thawing in rocks causes weathering. ...

Chemistry
Which of these substances has the highest molar entropy? A) C2H4 (g) B) CH3CH2OH (l) C) SO3 (g) D) CH3CH3 (g) E) C6H12O6 (g)

english
B?

english
18. Identify the sentence that most strongly relies on emotional language. I was surprised when you took a job with that company. It came as a real shock when you took a job with that company. When you took a job with that company, it really blew me away. I was mystified when ...

Physics
A converging lens (f = 27.5 cm) is used to project an image of an object onto a screen. The object and the screen are 113 cm apart, and between them the lens can be placed at either of two locations. Find the two object distances. (Enter your answers from smallest to largest...

Chemistry
Calculate ΔG at 298K if MnO2 = 0.150 mol, Mn = 0.850 mol, CO = 0.250 M and CO2 = 0.500 M in a 1.25 L flask.

phy
when the junctions of two dissimilar metals are maintained at different temperatures an electromotive force is set up in the circuit of which these junctions are part. a pair of junctions of this kind and the effect are known respectively as

Chemistry
I don't understand this one at all. Please help! For the equation: MnO2 (s) + 2 CO (g) → Mn (s) + 2 CO2 (g) 1. Calculate ΔG° at 25°C 2. Calculate ΔG° at 125°C

physics
Hooke's law

Chemistry, pre Algebra
Glycopyrrolste comes in quantity of 25 vials and has an AWP of $135.the store has an agreement with the contractor to purchase that chemical at the AWP minus 10% the insurer is willing to pay the AWP plus 3 % plus a $4 dispensing fee. a patient on this ensures plan purchases 5...

Pre algebra
1. Prepare 20 mL of dextrose 7.5% weight in volume using dextrose 5% and dextrose 50%. how many milliliters of each will be needed? 2. A chemical comes in quantity of 25 vials and has an AWP of $135.the store has an agreement with the contractor to purchase that chemical at ...

Math
Hydrocortisone comes in 50 mg/mL. A child is to get 2 mg. The volume in a miniscule of 0.04mL, which is really had to measure. Prepare a dilution so that final concentration is 5mg/mL. How much diluent well you need is the original products is 50mg/mL and you dilute the entire...

Math
Pydrotinces comes in 50 mg/mL. A child is to get 2 mg. The volume in a miniscule of 0.04mL, which is really had to measure. Prepare a dilution so that final concentration is 5mg/mL. How much diluent well you need is the original products is 50mg/mL and you dilute the entire ...

Life orientation
3 advatanges for a student to study at the institutions of higher education through NFSAS.

Chemistry
Make 50.0 mL of a 0.500 M solution of acetic acid (CH3COOH) from the 1.00 M CH3COOH using a 50.0 mL graduated cylinder. 1. Show your calculations and explain how you made the acetic acid solution.

Science
if this is "Jiskha homework help" wheres the help

Chemistry
1. Write the balanced equation. Use ONLY this equation to reference how the reactions below will shift. Consider whether there is an addition, a removal, or no effect to the reaction. Co(H2O)6^2+ + 4Cl^- <--> CoCl4^2- + 6H2O 2. Write the equilibrium expression for the ...

Algebra 2 Applications
A water balloon is dropped from a cliff. Exactly 3 sec later, the sound of the balloon hitting the ground reaches the top of the cliff. How high is the cliff? (Thanks in advance for any help you can provide!)

art
Was this correct? A or D?

art
Was D or A correct?

Calculus
A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x2h cm3. Find the rate at which the volume of the box is changing when the edge length of the base is 10 cm, the edge length of the base is increasing at...

algebra
The linear equation for this word problem....the membership to the museum is 10$ plus 1$ per visit. If I make 36 visits.....how much does it cost?

science 1 question
It can be facilitated by cell-surface proteins that recognize compatible DNA . All three are parasitic on other species of organisms.

Geometry
Yes

physics
0.678

Chemistry
Calculate the freezing and boiling points of a solution containing 14.9g FeCl3 in 176g water.

Calculus
I got 50 and it's correct. Thank you. I didn't know how to find the 4 approximate values

Calculus
Estimate the area under the graph of f(x)= x^2 + 2 x from x=1 to x=5 using 4 approximating rectangles and left endpoints.

chemistry
Thank you! That makes much more sense.

chemistry
A 0.205 g sample of impure NaOH requires 17.5 mL of 0.2180 M HCl for neutralization. What is the percent of NaOH in the sample, by weight?

Chemistry
please help! I don't understand any of this. Using the Solubility Rules, write the balanced molecular, total ionic, and net ionic equations (including physical states) for the following: Hints: There is no such thing as an Na3+. Na is in group 1A, so you know it can only ...

6th Grade Math Homework Check
Okay, Thank you so much!!!

6th Grade Math Homework Check
Can someone please check this for me? If it is wrong then can someone please show me how to solve this correctly? Thank you!

6th Grade Math Homework Check
In the first hour after opening, a coffee shop used 5 2/3 pounds of unflavored coffee. The shop used 2 1/2 times as much flavored coffee as unflavored. How many pounds of flavored coffee did the shop use? My Answer: 14 1/6

Trig
House B is located at a bearing of N67°E from house A. House C is 370 meters from house A at a bearing of S68°E. House B is located at a bearing of N11°W from house C. Find the distance from house A to house B. (Round your answer to two decimal places.) Sorry, I ...

chemistry
What is the correct formula for calcium nitrate

Genetics
25

thermochemical equation:
Well look at the value given a negative enthalpy means that energy was absorbed while a positive enthalpy means that energy was released take a look at Hess' law Enthalpy of products - Enthalpy of reactants = -212 kJ If it's negative then that means the products are at...

Physics
Your electric drill rotates initially at 5.11 rad/s. You slide the speed control and cause the drill to undergo constant angular acceleration of 0.363 rad/s^2 for 4.13 s. What is the drill's angular displacement during that time interval? ______ rad

Accounting
I need to know how to journalize this in a General Journal, but I don't know if it is required to even write down. Signed a lease agreement to rent office space for $975 per month, beginning Feb 1st. Nothing was paid today. (This happened on Jan 15)

Bio- Chemistry
Thank DrBob22! Really Helpful!

Bio- Chemistry
How can you identify the difference between an plant and animal cell. What structures (you should have at least 2) should you look for in each in order to tell the difference?

Physics
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. Suppose she produces an angular acceleration of 28.5 rad/s2 and her lower leg has a moment of inertia of 0.7 kg⋅m2. What is the force, in...

Algebra 2
Hi, I need help finding the domain and range of the Quadratic Model on part b. I've included part a. just in case you may need it. a.The parabolic path of a thrown ball can be modeled by the table. the top of the wall is at (5,6). Will the ball go over the wall? If not,...

science
Two spheres A and B of mass 6.0 kg and 7.3 kg respectively are separated by a distance of 0.65 m. (a) Calculate the magnitude of the gravitational force A exerts on B and B exerts on A.

science!!
1. the answer is D not B 2. the answer is B 3. the answer is C you are correct 4. the answer is A you are correct

economics
Producer surplus

Math
f(x)=logx2

social studies
I need help to ms.sue

math.
Your Welcome! Good Luck :D

math.
Sally has 125 Cents or $1. 25 and Sam has $19

Chemistry
These are my answers, can someone please check them for me? 1. Carbohydrate 2. Lipids 3. Lipids 4. Carbohydrate

Chemistry
Classify each as carbohydrate, protein, lipid, or nucleic acid. 1. Starch 2. Cholesterol 3. Steroids 4. Glycogen

Chemistry
Please help me! I do not know what to do. 500.0 g ethyl alcohol at 25°C (C = 2.46 J/g x °C) absorbs 74.0 J of heat energy. What is the final temperature? What is the specific heat constant if 621 g of Metal A raises the temperature of 500.0 g of water by 3.20°C and...

algebra
a 4 digit whole number is added to a 2 digit whole number. there is a largest possible sum and a smallest possible sum. what is the difference between those two sums?

physics
A football is thrown with an initial upward velocity component of 15.0m/s and a horizontal velocity component of 17.0m/s . a:How much time is required for the football to reach the highest point in its trajectory? b:How high does it get above the ground? c:How much time after ...

Science/physics
I done the problem and was wondering if my answer is right I got 1.87 and then 12.4 degrees above x axis please help At time t = 0 s, a puck is sliding on a horizontal table with a velocity 4.60 m/s, 32.0° above the +x axis. As the puck slides, a constant acceleration acts...

English
thank you

English
I need help with diagramming sentences. How do you diagram "Bruno and Shmuel talk and share food"? Is it a compound sentence, or does it have two verbs in a single clause?

biology
Where do reducing sugar in onion leaves come from?

Algebra
A 2 mile cab cost $5. A 6 mile cab costs $9. Write an equation to model the cost: c of a cab ride miles: m.

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