Catie

This page lists questions and answers that were posted by visitors named Catie.

Questions

The following questions were asked by visitors named Catie.

I'm having a hard time getting started studying for my chemistry midterm. i'm kind of overwhelmed. my teacher gave me a brief study guide, but where would be the best place to start? are notecards effective for studying chemistry?

i have to write two papers, one about the causes and the other about the effects of world war II. how can i structure them so that i score well?

My chem class just finished a lab in which the objective was to find the percentage of silver and barium in a nitrate salt mixture by precipitating the chromates, separating out the precipitate from the solvent and spectator ions via filtration, and analy...

I see you took my advice literally about carrying extra places. It isn't necessary to use ALL of those numbers that show up on your calculator. I think 1.5377X + 1.8447Y = 0.944 will be quite sufficient and I suspect even one number fewer still will work...

z/6 + 11 > -49 This is my problem for homework and I don't know how to do it. My teacher showed us but I guess it didn't get throw to me. ?????????????? Help

What do enzymes do in digestion?

A compund containing elements A and B has the formula A3B. If a jar containing 100 molecules of the compound A3B, how many atoms of type A are in the jar?

A block attached to a spring with unknown spring constant oscillates with a period of 7.0 s. Parts a to d are independent questions, each referring to the initial situation. What is the period if... The mass is doubled? The mass is halved? The amplitude i...

1.9 mol of gas at a temperature of -180 C fills a 3.4 L container. What is the gas pressure? Never been good at physics or mol stuff, how do you set it up?

A gas with initial conditions p_i, V_i, and T_i expands isothermally until V_ f=6 V_i. What are (a) T_f and (b) p_f? in terms of T_f/T_i and P_f/P_i First I don't understand what this is saying at all. And Second I need to know how to solve it.

A gas sample enclosed in a rigid metal container at room temperature 20C has an absolute pressure p_1. The container is immersed in hot water until it warms to 40C. What is the new absolute pressure p_2? Express your answer in terms of p_1. I was told to...

A hurricane wind blows across a 6.00 m times 15.0 m flat roof at a speed of 190 km/hr. Is the air pressure above the roof higher or lower than the pressure inside the house? Explain. Need help

A hurricane wind blows across a 6.00 m times 15.0 m flat roof at a speed of 190 km/hr. What is the pressure difference? Use 1.28 kg/m^3 for the density of air. How much force is exerted on the roof? If the roof cannot withstand this much force, will it "b...

Zoe purchased a house in 1999 for $196,000. In 2004, she sold the house and made a net profit of $80,000. Find the effective annual rate of return on her investment over the 5-year period. (Round your answer to the nearest hundredth of a percentage point....

A farmer wants to build a rectangular pen and then divide it with two interior fences. The total area is to be 2484ft^2. The exterior fence costs $18.00 per foot and the interior fence costs $16.50 per foot. Find the dimensions of the pen that will minimi...

Alonzo runs each lap in 6 minutes. He will run at most 72 minutes today. What are the possible numbers of laps he will run today?

which of the following would be the best criterion for evaluating this piece of art? (1 point) A. the characteristics of detailed portraits. B. the characteristics of perspective. C. the characteristics of photo-realism. D. the characteristics of impressi...

What number makes the equation true? 58 − − 28 = 19

Answers

The following answers were posted by visitors named Catie.

thank you so much for your help. this is what i have thus far: X(331.74g/2*107.87g) + Y(253.33g/137.33g)=0.944g which is: X(1.54g)+Y(1.84g)= 0.944 is that correct? how would i solve for the nitrates? we didn't measure each one separately--we measured the...

thank you, here is what i have. X(1.53768425g)+Y(1.844680696g)=0.944g X(1.574765922g)+Y(1.902934537g)=0.953g to solve this i know i need to use a system of equations, but i'm having trouble setting the coefficients to equal each other.

1.5748(0.944-1.8447Y/1.5377) + 1.90293Y = 0.953 -.4026 Y + 1.90293 Y = 0.953 1.50033 Y = 0.953 Y=.6352 1.5377 X +1.8447(.6352) = 0.944 1.5377 X +1.1717 = 0.944 1.5377 X = -.2277 X=-.148078

thank you so much for all of your help!

take two divded by three

z/6 + 11 > -49 This is my problem for homework and I don't know how to do it. My teacher showed us but I guess it didn't get throw to me. ?????????????? Help

Ra was a sun god. He took on many of the attributes and even the names of other gods as Egyptian myths evolved. A good example of this is the god Ra and Amun merging to become Amun-Ra or Ra and Horus combining to become Ra-Harakhte. Since Ra was a god of...

I don't have any other information though except for what is in the original question.

Thank you! That really helped!

I really don't understand this

Paying in cash. Thank you!

Doing homework with James, thanks!

Then it must be C

d because of the lack of curiosity of non whites above unskilled labors

I got it now I didn't understand hyperbole was an exggaration . So it's an hyperbole

8 believe it would be B