Unit 2: Matter Test Review

Acid + Base =

• Sulfur

• Ammonia

• Salt and a little bit of vinegar

• Salt and a little bit of water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A substance with a pH of 7 is -

• acid

• base

• neutral

A substance with a pH of 2 is -

• acid

• base

• neutral

• salt

A substance with a pH of 11 is -

• acid

• base

• neutral

• salt

If I mix a substance with a pH of 9 and a pH of 5, I will get -

• acid

• base

• salt and a little bit of water

• a headache

Answer explanation

pH 9 = Base. pH 5 = Acid. Acid + Base = Salt

Match these types of matter with their examples. You have Iron, Rust (Fe2O3), and the contents of a carpenter's pocket

• Mixture

• 
• Compound

• 
• Element

• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Match these types of matter with their examples

• Compound

• 
• Element

• 
• Mixture

• 

Answer explanation

Chemically Combined Compound

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Matter can be divided into different categories. If the substance is made of only one type of atom, it is called an ​ ​ (a)   . If it is made of two or more types of atoms that have chemically combined to form something new, it is called a ​ (b)   . Finally, if it's made of two or more things that are physically combined, then it is a ​ (c)   .

• element
• compound
• mixture

Answer explanation

H2O is the CHEMICAL formula for water

Match these types of matter with their definitions

• Made of one type of atom and cannot be broken down

• Element

• Chemically combined in a fixed ratio to form something new

• Mixture

• Physically combined but still as the original properties

• Compound

Looks different

• Homogeneous Mixture

• Heterogeneous Mixture

Answer explanation

hetero = different; homo = same