Chemistry and Matter Practice

Law of conservation of mass states that 

• matter is created
• matter is destroyed
• matter is neither created nor destroyed
• matter does not change

Tags

NGSS.MS-PS1-5

Melting is an example of

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A change in which one kind of matter changes into a different kind of matter with different properties is called a _________.

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A ________ change produces light and/or heat.

• chemical

• physical

Tags

NGSS.MS-PS1-2

The difference between elements and compounds is that...

• elements can be separated by physical means and compounds cannot.
• elements cannot be separated by physical means and compounds can.
• elements contain only one kind of atom and compounds contain more than one kind of atom.
• elements contain more than one kind of atom and compounds contain only one kind of atom.

 A substance that cannot be broken down into any other substance by ordinarychemical means is called —

• molecule
• mixture
• element
• compound

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

Particles (molecules) in a __________ have more energy than the other states of matter.

• gas

• solid

• liquid

Tags

NGSS.MS-PS1-4

Particles of a liquid _________.

• are tightly packed together and stay in a fixed position.

• decrease in volume with increasing temperature.

• are free to move around one another but still touch.