Chemical Reactions

For this chemical reaction, how many reactants are there?

silver nitrate + iron --> silver + iron nitrate

• 2

• 3

• 4

• 6

For this chemical reaction, which of the following is a product?

potassium hydroxide + carbon dioxide --> potassium carbonate + water

• potassium carbonate

• carbon dioxide

• potassium hydroxide

• hydroxide

• potassium

For this chemical reaction, how many different substances are involved in total?

Ca + 2HCl --> CaCl₂ + H₂

• 4

• 2

• 5

• 6

• 3

For the following chemical equation, what is the coefficient for oxygen

4NH₃ + 5O₂ --> 4NO + 6H₂O

How many sulfur atoms are present in this compound with this coefficient:

Al₂(SO₄)₃

• 2

• 3

• 4

• 6

• 12

sulfur dioxide reacts with water to make sulfurous acid.

Write the word equation for this reaction using --> as the arrow, and putting a space between chemicals and the + sign

What is the balanced chemical equation for the reaction between sodium (Na) and chlorine (Cl₂) to form sodium chloride (NaCl)?

• 2Na + Cl₂ → 2NaCl

• Na + Cl₂ → NaCl

• 2Na + 2Cl₂ → 2NaCl

• Na + 2Cl₂ → NaCl₂

Balance the following equation:

N₂ + H₂ --> NH₃

Write only the coefficients as your answer in the form A,B,C ; if you don't need to write a number it should be 1