Chemical Reactions Review

Balance the following equation:

__Na + __MgF₂ →__ NaF + ___Mg

• 3Na + 2MgF₂ → 2NaF + Mg

• 2Na + MgF₂ → 2NaF + Mg

• Na + 2MgF₂ → 2NaF + Mg

• 2Na + MgF₂ → 3NaF + Mg

Tags

NGSS.HS-PS1-7

Balance the following equation:

__Mg +__ HCl →__ MgCl₂ +__ H₂

• 2Mg +2HCl → 3MgCl₂ + H₂

• Mg + 2HCl → MgCl₂ + H₂

• 2Mg + 3HCl → MgCl₂ + H₂

• 4Mg + 4HCl → 3MgCl₂ + 2H₂

Tags

NGSS.MS-PS1-5

What are the products of this equation: 4P + 5O₂→P₄O₁₀

• P + O₂

• P

• O

• P₄O₁₀

What are the reactants of this equation: 4P + 5O₂→P₄O₁₀

• 4P + 5O₂

• P₄O₁₀

• P₄O₁₀ + 4P

• P + O

Tags

NGSS.MS-PS1-2

When a chemical reaction occurs, the reaction will create new substances. These new substances are called _______________.

• Resultants

• Reactants

• Coefficients

• Products

Tags

NGSS.MS-PS1-5

The formula AB ------> A + B shows an example of which type of chemical reaction?

• decomposition reaction

• single displacement reaction

• synthesis reaction

• double displacement reaction

Coefficients are which of the following?

• numbers that precede symbols and formulas in a chemical equation

• small numbers that follow a symbol or formula in a chemical equation. They are located slightly lower than the symbols they accompany.

• small numbers that follow a symbol or formula in a chemical equation. They are located slightly higher than the symbols they accompany.

• None of the above

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion