Chap 15-16 Notes

Question 1

Mixture that looks uniform when stirred or shaken but separated into layers when it is no longer agaitated

Answer 1

Suspicion

Question 2

Mixture of very tiny particle of our substance that are dispersed in another substance but do not settle out of the substance

Answer 2

Colliod

Question 3

2 differences between suspicion and colloids

Answer 3

Colloid particles do not settle / are smaller

Question 4

Scattering if light by colliod particles

Answer 4

TE(Tyndall effect)

Question 5

What does a subscript tell you?

Answer 5

Number of atoms

Question 6

Homogeneous

Answer 6

Uniformity mixed cannot see difference

Question 7

Heterogeneous

Answer 7

Not uniformity mixed (parts are visible)

Question 8

When something is what it can float on water

Answer 8

Less dense

Question 9

If you end in faster particles than start energy had to be absorbed

Answer 9

True

Question 10

At the same
________
More massive particles, move slower than less massive particles

Answer 10

Temperature

Question 11

Tiny particles are always in______ the higher the temp of the substance the faster the particles move

Answer 11

Motion

Question 12

All matter is made of _____ and _____ that act like tiny particles

Answer 12

Atoms /molecules