Chemical Reactions

Which chemical reaction breaks a single reactant down into 2+ substances?

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

AB + CD = AD + CB

• Double Replacement
• Single Replacement
• Combustion
• Decomposition

Si + S₈ --> Si₂S₄

• Synthesis (combination)
• Decomposition
• Single replacement
• Double replacement

Write a balanced equation for this DR reactions
NaOH + Fe(NO₃)₃ -->

• NaFe + OH(NO₃)₃
• 2NaNO₃ + 3Fe(OH)₃
• NaNO₃ + FeOH
• 3NaNO₃ + Fe(OH)₃

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Write a balanced reaction for this reaction
Zn(s) + H₂SO₄(aq) -->

• Zn(SO₄)₂ + H
• ZnSO₄ + H₂
• ZnSO₄ + H
• Zn₂SO₄ + H₂

Tags

NGSS.HS-PS1-7

What are the products of this reaction?
Cu+ AgNO₃--> 

• Cu(NO₃)₂+Ag
• CuNO₃ + Ag
• CuAg+NO₃
• Cu+ AgNO₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If an element is diatomic it should have a subscript of___

• 2, always
• 2, only when it is by itself
• it shouldn't have a subscript, it should have a coefficent

Predict the products for the decomposition of potassium chlorate: KClO₃

• KCl + O₂
• K2O + Cl₂
• K + ClO₃
• K + ClO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

According to the activity series, which of the following single replacement reactions can occur?

• Ca + Al₂(SO₄)₃
• Fe + NaOH
• Ni + MgSO₄
• Al + KOH

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the products for the decomposition of calcium carbonate: CaCO₃

• CaO + CO₂
• Ca + CO₃
• CaCO₂ + O₂
• CaO + CO₃