Cast Review Chemistry

Is this equation balanced?

• yes

• no

• Not enough information

• Left side is balanced

Tags

NGSS.MS-PS1-5

What charge does an electron have?

• Negative

• Positive

• Neutral

• Contrated

Tags

NGSS.MS-PS1-1

NGSS.MS-PS2-3

In this chemical equation, the elements in red are the_______.

• Products

• Reactants

• Subscripts

• Coefficients

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

What is the atomic mass of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the pH level of a neutral solution at 25°C?

• 0

• 7

• 14

• 10

Which of the following is an example of a chemical change?

• Melting ice

• Boiling water

• Burning wood

• Breaking glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the main component of natural gas?

• Methane

• Ethane

• Propane

• Butane

Which law states that mass is neither created nor destroyed in a chemical reaction?

• Law of Definite Proportions

• Law of Multiple Proportions

• Law of Conservation of Mass

• Avogadro's Law

Tags

NGSS.MS-PS1-5