Sol 6.5 Matter

How many elements are represented in the compound?
Na₂CO₃

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

An element is made up of only one kind of _____.

• isotope

• plastic

• atom

• metal

Tags

NGSS.MS-PS1-1

The chemical symbol for Helium is

• H

• Hg

• He

• O

When two or more elements chemically combine

• element

• compound

• mixture

• solution

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Compounds are different than elements because compounds are -

• A combination of two or more elements.

• 
  B)not able to be broken down into parts

• made from the same type of atoms
  

• a pure substance, elements are not
  

Two clear liquid chemicals are mixed and a solid substance forms, this is an example of what?

• Temperature change

• Precipitate

• Gas production

• Odor change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following examples shows that a chemical reaction has occurred? 

• A rock breaks into smaller pieces when it is struck with a hammer.

• Rust forms on a hammer that has been left outside to long. 

• A cup of water turns pink when a few drops of red food coloring are added. 

• A solid is formed when heat is removed from a sample of water. 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Four students performed four different investigations by combining different substances. Their results are shown in the table provided. In which experiment is there signs of a chemical change?

• Experiment 1

• Experiment 2

• Experiment 3

• Experiment 4

Tags

NGSS.MS-PS1-2

What does C in the element carbon represent on the periodic table?

• atomic mass

• atomic number

• element name

• chemical symbol

Which one can be found on the periodic table?

• Compound 

• Element