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Chemistry

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Brennan Jacobs

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2y ago
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Cards in this guide (12)
What is a solution

A liquid with something dissolved in it

What mass of NaCl would have to be dissolved in 1.000 kg of water to raise the boiling point by 2.00 degrees Celsius

114.14g NaCl

What state of matter has the least kinetic energy

The state of matter than has the least internal kinetic energy

(the kinetic energy of all the internal particles

relative to the center of mass of the system),

or the least internal + macrosopic kinetic energy,

is the same state as

"Which state of matter has the least thermal energy?".

(hint: it's not the gaseous state).

However, if you are asking what state of matter has the least macroscopic kinetic energy:

Every state of matter can have systems with zero macroscopic kinetic energy.

So none of them (or perhaps all of them) have the "least" kinetic energy.

Which of the following statements about communications is most accurate

B. Most body language is related to emotion and attitudes.

What does a dissolved salt look like

The ions in the salt are surrounded by water molecules.

What would dissolve the best in oil

grease

How can a solvent be separated from a solute by distillation

The solvent is collected as it is boiled off.

What is used to help water wash away greasy dirt

a molecule with polar and nonpolar end

What is the molality of a solution that has 6 mol of CaCl2 in 3 kg of water

2 m

What effect does adding a solute have on the boiling point of a solution

Adding a solute to a solution, or some liquid, causes the boiling point to increase.

Think about water, sometimes people throw salt in their water when they're boiling noodles. This causes the boiling point to increase so the water is actually at a higher temperature (although most of the time the amount of salt added isn't nearly enough to cause any measurable change).

Which of the following could a magnet float over network solid semiconductor superconductor molecular solid

A superconductor.

Which of the following is a Solution

Apex- Brewed Coffee

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