States of Matter (particle theory, diffusion, gas pressure)

States of Matter (particle theory, diffusion, gas pressure)

7th - 8th Grade

15 Qs

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States of Matter (particle theory, diffusion, gas pressure)

States of Matter (particle theory, diffusion, gas pressure)

Assessment

Quiz

Chemistry

7th - 8th Grade

Medium

Created by

Sri Iswatiningrum

Used 68+ times

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In steam, the distance between the molecules is __________ distance between the molecules in liquid water.

Please fill in the blank with the correct answer!

smaller than

the same as

larger than

not change

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following statements about the arrangement of particles:

1. The particles are arranged in regular rows

2. The particles are arranged randomly

3. The particles can only vibrate

4. The particles can move freely

Which statements describe the particles in gases?

1 and 4

2 and 3

1 and 3

2 and 4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Heating a liquid causes it to become a vapor. What happens to the molecules of the liquid during the process?

molecules become bigger and move further apart

molecules become bigger

molecules move further apart

nothing happens

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The phase change is shown below:

In which changes do the particles move further apart?

R and S

R and U

S and T

T and U

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An inflated balloon is placed in a refrigerator. Which statement describes the movement of the gas particles in the balloon?

The particles move more slowly and become closer together.

The particles move faster and become closer together.

The particles move more slowly and become further apart.

The particles move faster and become further apart.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Small crystals of purple KMnO4 and orange K2Cr2O7 were placed at the centers of separate Petri dishes filled with agar jelly. They were left to stand under the same physical conditions. After some time, the color of each substance had spread out as shown.

The lengths of the arrows indicate the relative distances traveled by particles of each substance. Which process causes this to happen?

Brownian motion

Condensation

Diffusion

Filtration

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you put some pollen grains into a drop of water on a microscope slide, they float. When you look through the microscope, you will see that the pollen grains are moving about. They jiggle about in random directions. You will see the same effect if you sprinkle some dust on the water. What is the process of the occasion above?

Diffusion

Brownian Motion

Molecular Motion

Collision Motion

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