1a States of Matter

1a States of Matter

by Ms Michelle Zou

Match

Match the following

solid

liquid

gas

• solid

• liquid

• gas

Drag and Drop

In a solid, the particles are usually ​

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and ​

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closely together. The particles are only able to ​

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about ​

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positions. They ​

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move around. The particles have strong forces of attraction between them, which keep them together.

Drag these tiles and drop them in the correct blank above

arranged regularly

packed

vibrate

fixed

can't

Drag and Drop

In a liquid, the particles are still mostly ​

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, but some ​

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have appeared. This is why luqieds are usually ​

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than solids. The forces between the particles are less effective, and the particles ​

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move around each other. The particles in a liquid are arranged ​

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.

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touching

gaps

less dense

can

randomly

Drag and Drop

The particles in a gas are moving ​

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at ​

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in ​

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. In a gas, the particles are much ​

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and there are (almost) ​

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between them.

Drag these tiles and drop them in the correct blank above

randomly

high speed

all directions

further apart

no forces of attraction

Multiple Choice

What is the process called when something goes directly from a solid to a gas?

• sublimation

• condensation

• melting

• deposition

Multiple Choice

What is the phase change of a solid to a liquid?

• freezing

• melting

• boiling

• condensation

Multiple Choice

The phase change from water vapor to liquid water is known as...

• evaporation

• precipitation

• condensation

• sublimation

Multiple Choice

In a Kool-Aid solution, what is the solute?

• The powder

• The water

• The mix of both of them

Multiple Choice

In a Kool-Aid solution, what is the solvent?

• The powder

• The water

• The mix of both of them

Multiple Choice

Solubility is defined as

• the ability to catch on fire

• the ability of a substance to dissolve

• the ability to fly.

• the ability to get on Mrs. D's nerves.

Multiple Choice

The temperature when a solid changes to a liquid - 

• melting point

• boiling point

Multiple Choice

A substance has a melting point of 25 ^oC and a boiling point of 235 ^oC. What state is it at 5^oC?

• Solid

• Liquid

• Gas

Multiple Choice

Melting Point of water is

• 100 degrees Celsius

• 0 degrees Celsius

• 0 degrees Fahrenheit

​

Multiple Choice

If the boiling point of water is 100 degrees celsius, what is the state of matter of water at 115 degrees celsius?

• Solid

• Liquid

• Gas

• Plasma

​What is Diffusion?

Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration .

​Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out of cells.

​Diffusion in everyday life

​Factors affecting diffusion

• ​The state of matter

• ​Temperature

• ​Consentration gradient

Multiple Choice

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

Multiple Choice

What is DIFFUSION?

Multiple Choice

Diffusion occurs only in solids

• True

• False

Multiple Choice

Diffusion is the free movement of particles from an area of __________ concentration to an area of ________ concentration.

• High to high

• High to low

• Low to low

• Low to high

Multiple Choice

Two gas jars are set up as shown.

The lid is removed and the gas jars are left to stand. After some time the contents of both gas jars are brown. Which process causes this to happen?

• condensation

• diffusion

• evaporation

• filtration

Multiple Choice

Hydrogen chloride gas, HCl, reacts with ammonia gas, NH₃, to form solid ammonium chloride. The apparatus is set up as shown. After a few minutes, solid ammonium chloride forms where the two gases meet.

• A

• B

• C

• D

Multiple Choice

Ammonia gas is reacted with hydrogen chloride gas using the apparatus shown. Solid ammonium chloride is produced

• Ammonia solution is a base and hydrogen chloride solution is an acid.

• Ammonia molecules diffuse more slowly than hydrogen chloride molecules.

• Hydrogen chloride has a greater molecular mass than ammonia.

• Hydrogen chloride moves by Brownian motion.

Multiple Choice

Solutions are composed of __________ .

• salts and solutes

• solvents and salts

• solutes and alloys

• solutes and solvents

Multiple Choice

When 42 grams of potassium chloride, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Multiple Choice

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Multiple Choice

Which solute is the most soluble at 10 ⁰C?

• KI

• KClO₃

• NH₄Cl

• NH₃

Multiple Choice

Which solute is the least soluble at 90 ⁰C?

• SO₂

• KClO₃

• KI

• HCl

Multiple Choice

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 90 ºC?

• 85 grams

• 70 grams

• 40 grams

• 15 grams

Multiple Choice

25 grams of NaCl are dissolved in 100 mL of water at 60 C. How many more grams need to be dissolved for the solution to be saturated?

• 13 grams

• 25 grams

• 6 grams

• 38 grams