Investigation 6: Chemical Reactions

4Si + S₈ --> 2Si₂S₄

• Synthesis

• Decomposition

• Single displacement

• Double displacement

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis
• Decomposition
• Single diplacement
• Double displacement

3Mg + N₂ --> Mg₃N₂

• Synthesis 
• Decomposition
• Single displacement
• Combustion

2NO₂ --> N₂ + 2O₂

• Synthesis
• Decomposition
• Single displacement
• Combustion

2Fe + 3H₂SO₄ --> Fe₂(SO₄)₃ + 2H₂

• Synthesis 
• Decomposition
• Single displacement
• Combustion

Which chemical reaction breaks down into 2 substances?

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

Which chemical reaction takes place when 2 substances react to form a single product?

• Decomposition
• Double Replacement
• Single Replacement
• Synthesis

The Law of Conservation of Mass states

• that matter exists in all states and reacts the same

• that matter can only be changed into new substances by introducing a catalyst

• that matter exists in the same state throughout any chemical change

• that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants

Tags

NGSS.HS-PS1-7

How many Al atoms are in this compound? 4Al₂O₃

• 2

• 8

• 6

• 4

Tags

NGSS.MS-PS1-1

C₃H₆O + 4O₂ --> 3CO₂ + 3H₂O

• Double replacement reaction

• Single replacement reaction

• Combination reaction

• Combustion reaction