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dem82 [27]
4 years ago
7

The molality of a solution is a measure of -

Chemistry
1 answer:
BigorU [14]4 years ago
8 0

Answer: Its C

Explanation: I did the test and got it correct

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Which of the drawings represents the gas after the temperature is lowered from 350 k to 80 k? the boiling point of the gas is 90
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3 years ago
What is an Independent Variable (IV)? *
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Which surface has the most friction
Nesterboy [21]

Answer: Rougher surfaces have more friction between them than smoother surfaces. That's why we put sand on icy sidewalks and roads. You can't slide as far across ice with shoes as you can on the blades of skates. The rougher surface of the soles of the shoes causes more friction and slows you down.<em> There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest.</em>

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4 0
3 years ago
How many moles of nitrogen are present at STP if the volume is 846L
Artyom0805 [142]
A mole of any gas occupied 22.4 L at STP. So, the number of moles of nitrogen gas at STP in 846 L would be 846/22.4 = 37.8 moles of nitrogen gas.

Alternatively, you can go the long route and use the ideal gas law to solve for the number of moles of nitrogen given STP conditions (273 K and 1.00 atm). From PV = nRT, we can get n = PV/RT. Plugging in our values, and using 0.08206 L•atm/K•mol as our gas constant, R, we get n = (1.00)(846)/(0.08206)(273) = 37.8 moles, which confirms our answer.
3 0
3 years ago
Why do we use the term formula unit for ionic compounds instead of the term molecule? Select all that apply.
Ket [755]

We use the term formula unit for ionic compounds because ;

  • Ionic compounds consist of cations and anions present in constant ratio ( C )
  • Ionic compounds consist of continuous arrays of cations and anions ( D )

The molecule of an ionic compound gets attached to another molecule of an ionic compound via electrostatic force of attraction. this form of attraction between the molecules forms an arranged lattice structure. and due to this well arranged lattice structure an ionic compound can be termed as a Formula unit and not molecule.

Hence the correct options are as listed above

Learn more : brainly.com/question/14870624

4 0
3 years ago
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