Chemical Equations

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

The substances listed on the left side of a chemical equation are the

• Products
• Coefficients
• Precipitates
• Reactants

In chemical reactions, what does the principle of conservation of mass mean?

• Matter is not created or destroyed.
• The total mass of the reactants is greater than the total mass of the products.
• The total mass of the reactants is less than the total mass of the products.
• Matter is not changed.
  

Tags

NGSS.HS-PS1-7

What state of matter is this substance?

• solid

• liquid

• gas

• aqueous

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Identify the number in blue.

• Product

• Reactant

• Coefficient

• Subscript

Tags

NGSS.HS-PS1-7

In what state is this substance?

• solid precipitate

• dissolved in water

• released as a gas

• liquid

Tags

NGSS.HS-PS3-4

How many atoms of nitrogen are shown above?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What are the blue numbers called?

• oxidation numbers

• subscripts

• group numbers

• product numbers

Which compound is formed as a precipitate in this reaction?

• Pb(NO₃)₂

• KI

• PbI₂

• KNO₃

What does the symbol inside the circle mean?

• "yields, or produces"

• "dissolved in water"

• "forms a precipitate"

• "released as a gas"