The Structure of Matter - TEST REVIEW

A chemical bond can be defined as a force that:

• holds parts of an atom together

• joins atoms in a compound

• causes electric repulsion

• blends nuclei together

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-1

A compound is different from a mixture because:

• a compound is held together by chemical bonds

• each substance keeps its own properties in a compound

• each substances remains unchanged

• A mixture is held together by a chemical bond

Tags

NGSS.MS-PS1-1

Ionic compounds are:

• formed by networks of ions that have the same charge

• have low melting points

• have strong bonds

• are normally gases at room temperature

Tags

NGSS.HS-PS1-3

Which of the following is an example of an ionic compound?

• H2O

• CO2

• KCl2

• PCl3

Which of the following is an example of a covalent compound?

• NaCl

• CaBr

• H2O

• MgS

Tags

NGSS.MS-PS1-5

Which of the following is an example of a polyatomic compound?

• H2O

• Li2S

• NH4OH3

• Fe6

Tags

NGSS.MS-PS1-1

All organic compounds:

• come from living organisms

• contain only carbon and hydrogen atoms

• form ionic compounds

• contain carbon

Tags

NGSS.MS-PS1-1

Which of the following does NOT describe a covalent compound?

• made of 2 nonmetals

• share electrons

• have high melting points

• are found in organic compounds

Tags

NGSS.HS-LS1-6

What will the charge of Calcium (Ca) be?

• 1+

• 2+

• 3+

• 2-

What will the charge of Chlorine (Cl) be?

• 1-

• 2-

• 3-

• 1+