Equation Writing

• x = 5; y = 6

• x = 6; y = 5

• x = 5; y = 5

• x = 6; y = 6

Which of the following is the CORRECT formula for ammonium carbonate?

• NH₄CO₃

• NH₄(CO₃)₂

• (NH₄)₂CO₃

• (NH₄)₂(CO₃)₂

Which of the following represents a balanced equation for the reaction between aqueous silver nitrate and aqueous sodium chloride?

Which of the following is the balanced equation for the reaction between aqueous silver nitrate and aqueous sodium iodide?

• A

• B

• C

• D

What is the formula for iron (III) sulfate?

• FeSO₄

• Fe(SO₄)₂

• Fe₂(SO₄)₃

• Fe₂SO₄

An element Q, with electronic configuration 2.8.1, reacts with element R, with electronic configuration 2.8.6, to form an ionic compound. The likely formula of the compound is

• Q₂R₂

• QR

• Q₂R

• QR₂

A metallic element, M, and a non-metallic element, X, form an ionic compound with the formula M2X3. What are the charges on the ions formed by M and X?

• A

• B

• C

• D

Which of the following is a balanced equation for the reaction between aqueous ammonium bromide and aqueous silver nitrate?

• A

• B

• C

• D

Which of the following salts are effectively INSOLUBLE in water?

• Silver iodide

• Potassium sulfate

• Copper (II) nitrate

• Calcium carbonate

Which of the following is the symbol for the element caesium?

• cs

• CS

• Cs

• cS