Balancing Equations and Reaction Types

Identify the coefficients of the following equation?

___PCl₅ + ___ H₂O → ___ HCl + ___H₃PO₄

• 1, 4, 5, 1

• 1, 1, 6, 1

• 1, 3, 8, 1

• 1, 2, 2, 1

Identify the coefficients of the following equation?

___ Al + ___ FeO → ___Al₂O₂ + ___ Fe

• 1, 1, 2, 1

• 2,1,2, 1

• 2, 2, 1, 2

• 2, 4, 1, 2

Tags

NGSS.HS-PS1-7

Identify the coefficients of the following equation?

___ Mg + ___ HCl → ___ MgCl₂ + ___ H₂

• 2, 1, 1, 1

• 1, 2, 1, 1

• 1, 1, 2, 1

• 1, 1, 1, 2

Tags

NGSS.HS-PS1-7

Identify the coefficients of the following equation?

___ SnO₂ +___ H₂-->___ Sn +___ H₂O

• 1, 1, 2, 1

• 1, 2, 1, 1

• 1, 2, 1, 2

• 1, 2, 2, 1

Tags

NGSS.HS-PS1-7

Identify the coefficients of the following equation?

___ CF₄ + ___ Br₂ --> ___ CBr₄ + ___ F₂

• 2, 1, 2, 1

• 1, 2, 2, 1

• 1, 2, 1, 2

• 2, 2, 2, 2

Tags

NGSS.HS-PS1-7

Which number, found on a balanced equation, shows the number of a specific atom within a compound?

Example: H₂O

• Coefficient

• Subscript

• Charge

• Oxidation Number

Tags

NGSS.MS-PS1-1

Identify the coefficients of the following equation?

___ Al +___ HCl --> ___ H₂ +___ AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

Tags

NGSS.HS-PS1-7

Which problem is already balanced?

• PbO₂ + 2H₂--> H₂SO₄

• SO₂ + H₂O --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

• NaOH + 3AgNO₃ --> 3AgOH + NaNO₃

Tags

NGSS.HS-PS1-7

Identify the type of reaction:

4Si + S₈ --> 2Si₂S₄

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Identify the type of reaction:

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis

• Decomposition

• Single replacement

• Double replacement