CHEM Unit 7 Review

Which of the following represents a synthesis reaction?

• AB --> A + B
• A + BC --> AC + B
• A + B --> AB

Which of the following represents a decomposition reaction?

• AB --> A + B
• A + BC --> AC + B
• A + B --> AB
• Pluto

Which of the following represents a single displacement reaction?

• AB --> A + B
• A + BC --> AC + B
• A + B --> AB

Which of the following must be equal on both sides of a chemical reactin to be considered balanced?

• Molecules
• Atoms
• Coefficients
• Subscripts

Tags

NGSS.MS-PS1-5

What are the notations for solid, liquid, and gas in a chemical reaction?

• (s), (l), (g) respectively
• (g), (s), (l) respectively
• (l), (s), (g) respectively

Tags

NGSS.MS-PS1-4

What is a precipitate?

• When substances fully dissolve in a solution.
• A solid formed afer a reaction and is insoluble in a solution.

What notation is used to indicate that a substance is dissovled in water in a chemical reaction?

• (s)
• (d)
• (kg)
• (aq)

Using the activity series resource, which of the following listed elements is the most reactive?

• Pb
• Hg
• Sn
• Au

Using the solubility patterns resource, which of the following ionic compounds is insoluble?

• BeCrO4
• MgCO3
• NaCl

Using the solubility patterns resource, which of the following ionic compounds is soluble?

• BaOH2
• HPO4
• AgCl