Chemistry 1 - Unit 4 Review

Glucose is C₆H₁₂O₆. What is the percent composition of hydrogen in glucose?

• 5.00%

• 33.30%

• 6.67%

• 53.30%

What is missing from the product side of this equation?

• 6 carbon atoms

• 12 hydrogen atoms

• 12 oxygen atoms

• 2 water molecules

What number is needed in the box to balance the chemical equation?

• 1

• 2

• 3

• 4

Using the equation provided, how many grams of oxygen gas are needed to produce 36 g of water?

• 9

• 16

• 32

• 40

How many moles are in 199 g of CCl₄?

• 0.77 mol

• 1.29 mol

• 3.06 x 10⁴ mol

• 3.31 x 10²² mol

Silver and copper (II) nitrate are called the _____.

• reactants

• products

• catalysts

• inhibitors

What type of reaction is represented by this equation?

• synthesis

• decomposition

• single replacement

• double replacement

What is the half-life of Iodine according to the graph?

• 8 day

• 16 days

• 32 days

• 48 days

What happens to the total mass of the contents in the test tube?

• The total mass increases.

• The total mass decreases.

• The total mass remains the same.

• Part of the mass is changed to heat energy.