Balancing Equations Rev 2

The number to the lower right of an element that shows the number of atoms bonded is called ?

• Product

• Subscript

• Chemical Formula

• Reactant

Tags

NGSS.MS-PS1-1

What is a Reactant?

• The end result of a chemical reaction.

• The arrow that separates the product from the reactant.

• The number to the lower right of an element that shows the number of atoms.

• The substance changed in a chemical reaction.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a Yield in a chemical reaction?

• The arrow that separates the product from the reactant.

• The end result of a chemical reaction.

• The number before a chemical formula that shows the number of molecules present.

• A written description of a chemical reaction.

Tags

NGSS.MS-PS1-5

_________ describes the number of elements in a compound. Ex H₂SO₄

• chemical symbol

• chemical formula

• chemical equation

• coefficient

______ is the end result of a chemical reaction.

• Product

• Yield

• Subscript

• Reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a chemical equation?

• Describes the number of elements in a compound.

• One or two letters that represent the elements on the periodic table.

• The number to the lower right of an element that shows the number of atoms bonded.

• A written description of a chemical reaction.

What is the coefficient of the oxygen molecule (O₂) in the elephant toothpaste equation?

2 H₂O₂ -> 2 H₂O + O₂

• 0

• 1

• 2

• 4

What do you call the substances on the left side of a chemical equation?

• yield
• products
• reactants
• compounds

Tags

NGSS.MS-PS1-1

Chose the correct labels for the parts of a chemical equation.

• reactants yield products
• reactants make compounds
• products equal reactants
• products yield reactants

Tags

NGSS.MS-PS1-2

Which contains the greatest number of elements?

• 5CH₄
• Fe₂O₃
• C₆H₁₂O₆
• C₈H₁₀N₄O₂

Tags

NGSS.MS-PS1-1