Writing Chemical Equations Practice

KClO₃ ----> ____ KCl + ____ O₂

• 3, 2, 2

• 2, 3, 2

• 2, 2, 3

• 2, 3, 4

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

___ Cr + ___O₂ -----> ____ Cr₂O₃

• 3, 2, 4

• 2, 3, 4

• 2,1, 5

• 4, 3, 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• F

• G

• H

• J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• Yield

• Product

• Coefficient

• Reactant

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

• Product

• Subscript

• Chemical Formula

• Reactant

NaClO₃ ----> NaCl + O₂

• 1, 3, 2

• 2,3,2

• 2, 2,3

• 3, 2, 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

___ AlBr₃ + ___ Cl₂ ----> ___ AlCl₃ +_{___} Br₂

• 2, 2, 3, 3

• 2, 3, 2, 3

• 2, 3, 3, 2

• 1, 2, 3, 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

___ 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