High School Chemistry Review

What is the atomic mass for this element?

• 6

• 12.0107

• 6.0107

• 18.0107

Tags

NGSS.HS-PS1-1

How many molecules are in the Reactant?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

How many neutrons are in an Calcium atom?

• 20

• 40.08

• 60

Tags

NGSS.MS-PS1-1

How many total atoms are in the product?

• 10

• 5

• 7

• 12

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

If the protons and electrons do not match, the atom is ____.

• neutral

• ion

Which of the following is a chemical change?

• Iron rusting 
• Glass breaking
• Clothing ripping
• Hair cut

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the law of conservation of matter?

• Matter changes when reacted or changed.
• The mass of all reactants are changed during a physical or chemical change.
• The mass of the reactants is the same as the mass of the products.
• The mass of the products is different than the mass of the reactants.

Tags

NGSS.MS-PS1-5

The atomic number of oxygen is

• 8

• 15.9994

• 16

• O

Tags

NGSS.HS-PS1-1

Electrons are

• Positively charged particles

• Negatively charged particles

• Neutral

A group of elements that are shiny, conduct heat and electricity well is called

• Metals

• Non-metals

• Metalloids

Tags

NGSS.MS-PS3-3