Intro to Chemistry

What do you call anything that has mass and takes up space?

• Energy

• Mixture

• Compund

• Matter

Which of the following is an example of a mixture?

• Sugar

• Water

• Salt water

• Carbon dioxide

How do you measure the volume of an irregularly shaped object?

Answer explanation

Irregularly shaped objects can be submerged in water and you can measure how much the water level has changed to determine the volume of the objects.

Which state o matter can have particles arranged in either crystalline or amorphous form?

• Solid

• Liquid

• Gas

• Plasma

What holds atoms together in a molecule?

• Gravity

• Density

• Physical bonds

• Chemical bonds

What is the conversion of converting solid to gas called without turning to a liquid? For example when snow disappears from the ground even when temperature stays below freezing.

What are units for pressure?

Answer explanation

Pressure is calculated as force/ area

Newtons = a unit of force

Area = measured in square meters

As the pressure of a gas increases, what happens to the volume of a gas if the temperature stays the same?

Answer explanation

As pressure increases, the particles are pressed into a smaller space. This means that the volume has decreased.

What are examples of physical properties of matter?

Answer explanation

Harness, color, texture, freezing point, melting point, boiling point, ect.

The _______ states that matter is not created or destroyed in any chemical or physical change.