Classifying Chemical Equations

Predict the products for the this reaction:
K + HCl --> 

• KCl + H2

• KHCl 

• KH + Cl2

• KCl + H

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What type of reaction is this?
2 C₆H₁₄ + 19 O₂ --> 12 CO₂ + 14 H₂O

• Single Replacement

• Double Replacement

• Combustion

• Decomposition

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following equations represents the balanced synthesis reaction of iron (III) and oxygen?

• Fe + 3 O₂ → Fe₂O₃

• 3 Fe + 3 O₂ → 2 Fe₂O₃

• 2 Fe + O₂ → Fe₂O₃

• 4 Fe + 3 O₂ → 2 Fe₂O₃

Tags

NGSS.HS-PS1-7

What kind of reaction is this:
2H₂O₂ →2 H₂O + O₂

• Synthesis

• Decomposition

• Single Replacement 

• Combustion

Tags

NGSS.MS-PS1-2

What kind of reaction is this:
Fe + CuSO₄ -> Cu + FeSO₄

• Double Replacement

• Decompostion

• Single Replacement

• Combustion

Tags

NGSS.MS-PS1-5

in a reaction, aqueous barium chloride reacts with aqueous potassium carbonate to produce solid barium carbonate and aqueous potassium chloride. what is the correct balanced equation.

• Ba₂Cl_(aq) + KCO_3(aq) --> BaCO_3(s) + KCl_(aq)

• BaCl_2(aq) + K₂CO_3(aq) --> BaCO_3(s) + 2KCl_(aq)

• BaCl_(aq) + K₂CO_3(aq) --> BaCO_3(s) + K₂Cl_(aq)

• Ba₂Cl_2(aq) + KCO_3(aq) --> Ba₂CO_3(s) + KCl_2(aq)

Tags

NGSS.HS-PS1-7

When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced

• charge

• subscript

• random number

• coefficient

Tags

NGSS.HS-PS1-7

What are the correct formulas and coefficients for the products of the following single-replacement reaction?
Mg + Al(OH)₃ →

• No Reaction

• Al + Mg(OH)₃

• 2 Al + 3 Mg(OH)₂

• 3 Al + MgOH₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the products, before balancing.

Co₂(SO₄)₃ + NaOH -->

• CoOH + NaSO₄

• CoNa + OH(SO₄)₃

• Co₂OH + Na(SO₄)₃

• Co(OH)₃ + Na₂SO₄

• no reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What are the products for this combustion reaction: C₂H₄ + 2 O₂ -->

• C₂O₂ + H₄

• CO₂ + HOH

• CO + H

• CO₂ + H₂O