Chemical Equations Quiz 1

Given the equation representing a chemical reaction: NaCl(aq) + AgNO3(aq) NaNO3(aq) + AgCl(s)

This reaction is classified as a

• synthesis reaction

• single replacement reaction

• decomposition reaction

• double replacement reaction

What is the gram-formula mass of Ca(OH)2?

• 29 g/mol

• 57 g/mol

• 54 g/mol

• 74 g/mol

The formula mass of a compound is the

• sum of the atomic masses of its atoms

• sum of the atomic numbers of its atoms

• product of the atomic masses of its atoms

• products of the atomic numbers of its atoms

Given the balanced equation representing a reaction:
2H2 + O2 $\rightarrow$  2H2O + energy

Which type of reaction is represented by this equation? $\cdot$   

• decomposition C) single replacement D) synthesis

• double replacement

• single replacement

• synthesis

Which list includes three types of chemical reactions?

• decomposition, single replacement, and solidification

• decomposition, single replacement, and double replacement

• solidification, double replacement, and decomposition

• solidification, double replacement, and single replacement

In which type of reaction do two or more substances combine to produce a single substance?

• synthesis

• decomposition

• single replacement

• double replacement

Given the word equation:

sodium chlorate $\rightarrow$   sodium chloride + oxygen

Which type of chemical reaction is represented by this equation?

• double replacement

• single replacement

• decomposition

• synthesis

Given the reaction:

Mg(s) + 2 AgNO3(aq) $\rightarrow$ Mg(NO3)2(aq) + 2 Ag(s)

Which type of reaction is represented?

• single replacement 

• double replacement

• synthesis

• decomposition

A balanced equation representing a chemical reaction can be written using

• chemical formulas and mass numbers

• chemical formulas and coefficients

• first ionization energies and mass numbers

• first ionization energies and coefficients

Which chemical equation is correctly balanced?
A).  H2(g) + O2(g)  $\rightarrow$   H2O(g)

B).  N2(g) + H2(g)  $\rightarrow$   NH3(g)

C).  2NaCl(s) $\rightarrow$   Na(s) + Cl2(g)

D).  2KCl(s)  $\rightarrow$   2K(s) + Cl2(g)

• A

• B

• C

• D