1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ber [7]
3 years ago
13

A solid is cooled to a very low temperature. Assuming the mass remains constant, how, if at all, does this affect the density of

the solid?
Enter your answer in the space provided
Chemistry
2 answers:
schepotkina [342]3 years ago
6 0

it is making a new form so the density would be the same because water becoming into ice a solid are the same thing.

Sliva [168]3 years ago
6 0

when a solid is cooled, its molecules slow down n vibrate less. usually its volume will decrease. as the mass remains constant and density = mass/volume, density will decrease.

You might be interested in
PLZZZZ<br> HELP<br> MEH<br> THANKS<br> YEET
aleksandrvk [35]

Remark

The question with these kind of problems is "Which R do you use?" That's where dimensional analysis is so handy. You must look at the units of the givens and choose your R accordingly. You'll see how that works in a moment.

You need to list the givens along with their units and in this case the property you want to solve for. You need all that to determine the R value

Givens

n = 0.25 moles

T = 35°C = 35 + 273.15 = 308.15°K

V = 6.23 L

Pressure = P in kPa

Which R

The units of the R you want has to have units of moles, kPa, °K and liters

The R that  you want is 8.314

<em><u>Formula</u></em>

PV = nRT

P 6.23 = 0.25 * 8.314 * 308.15  Combine the left

P*6.23 = 640.5

P = 640.5/6.23 = 102.81  The answer should be 100 kpA of 1.0 * 10^2 kPa

because the number of moles has only 2 sig digs.

But if sig digs are not a problem 102.8 is likely close enough.

Second Question

You are going to have to clean up the numbers. I think I've got only 1 chance at this. The partial pressures of the 2 gases will add up to the total pressure. So the total pressure was 100 approx and the water vapor was 3.36 kPa. The difference is

Total = air + water vapor

100.18 = air + 3.36 about  Subtract 3.36 from both sides.

100.18 - 3.36 = 96.82 about. Pick the answer that is closest to that. I'll clean up the numbers if I can.

Answer  C

6 0
3 years ago
Read 2 more answers
Drag each label to the correct location on the equation. Each label may be used more than once.
elena-14-01-66 [18.8K]
HCl is an acid, C5H5N is a base, Cl is an acid, and HC5H5N is an acid.

Hope this helps! If so, brainliest would be appreciated!
8 0
2 years ago
A man drove his car through the Nevada desert one day when the temperature was over 100°F. When he started the trip, the gas sta
kodGreya [7K]
<span>The temperature in the tire increased, causing an increased tire pressure.</span>
7 0
3 years ago
What is joules? plz help​
emmainna [20.7K]
That’s the SI unit of energy or work
7 0
3 years ago
A 21.94-gram sample of magnesium nitrate was used to create a 2.11 M solution. What is the
Tatiana [17]

Answer:

70.1 mL

Explanation:

First let's look at the formula for magnesium nitrate, and get the molar mass, we should end up with Mg(NO3)2 for the formula and this should have a molar mass of 148.3 g/mol.

Lets get the number of moles of the magnesium by taking the number of grams over the molar mass, (21.94 g)/(148.3 g/mol). grams cancel and we're left with approximately 0.148 moles.

Now let's plug our numbers into the molarity formula, M = n/L, this should give us 2.11 mol/L = (0.148 mol)/L, now let's solve for L, divide both sides by 0.148 which will give us 14.26 L^-1 = 1/L now we take the inverse of both sides to get 0.07012 L = L.

Now we have the liters, but the question askes for milliliters, so let's multiply by 1000, and then after rounding to sig figs we will get 70.1 mL as our answer. (Note: I used the exact values instead of the approximations throughout this explanation, so if you calculate the answer by plugging in these values, it might be slightly off.)

6 0
2 years ago
Other questions:
  • Which of the following statements is untrue in regard to sound traveling in air? 
    8·2 answers
  • What does (2.3 x 10^5 times 3.8 x 10^-8) divided by (2.56 x 10^9) equal?
    14·1 answer
  • Help please!!! The name of the precipitate recovered by filtration is__________
    7·1 answer
  • How many moles of H20 are in 12.4 g H20?​
    7·1 answer
  • Why is the solar system often referred to as the sun’s family ?
    11·2 answers
  • How does parallax affect vision with each eye
    5·1 answer
  • Is salt a Elements or a Compound?
    11·2 answers
  • What is osmosis as a scientific term<br><br>​
    8·1 answer
  • Which of the following does NOT show the law of conservation of mass?
    5·2 answers
  • Why does the chlorine compound has the properties it does by its bonding and structures
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!