Writing Chemical Equations Practice

___ H₂ +___O_{2 ----> ____} H₂O

• 1, 2, 2

• 2, 2, 1

• 1, 2, 3

• 2, 1, 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

____ H₂ + ____ N₂ ----> ____ NH₃

• 1, 2, 3

• 3, 1, 2

• 3, 2, 1

• 1, 3, 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

__ P₄ + __ O₂ -----> ____P₂O₅

• 1, 5, 2

• 2, 5, 7

• 2, 1, 5

• 5, 1, 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

___ Al + ___ Br₂ -----> ____ AlBr₃

• 3, 2, 2

• 2, 3, 2

• 3, 2, 2

• 1, 2, 3

Tags

NGSS.MS-PS1-5

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

• Product

• Subscript

• Chemical Formula

• Reactant

The number before a chemical formula that shows the number of molecules present is call a?

• Yield

• Product

• Coefficient

• Reactant

The blue numbers in the image below are called ___________.

• compounds

• coefficients

• subscripts

• chemical formulas

In the following chemical equation, C_{2 +} O₂→ CO₂, what are the reactants?

• C₂

• C_{2 +} O₂

• CO₂

• C_{2 +} O₂→ CO₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which of the following models best demonstrates a balanced chemical equation?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the subscript in the formula 3KClO_{2 +} 4Li?

• 2

• 3

• 4

• All of the numbers