Law of Conservation of Mass Flashcard

Front

What are the substances that are produced in a chemical reaction?

Back

Product

Front

What are the starting substances in a chemical equation?

Back

Reactants

Front

The law of conservation of mass states that ________

Back

the mass of a chemical reaction remains constant

Front

According to the law of conservation of mass, how much mercury was present in the mercury (II) oxide? Options: 55.8 g, 64.2 g, 60.0 g, 126.0 g

Back

55.8 g

Front

Copper (Cu) and sulfur (S) were heated in a covered container. After the reaction was complete, the unreacted sulfur was removed. How much sulfur in grams failed to react with the copper? Options: 1.32 g, 4.54 g, 5.02 g, 10.88 g

Back

1.32 g

Front

Which chemical equation supports the law of conservation of mass? Options: Equation (a), Equation (b), Equation (c), Equation (d)

Back

Equation (d)

Front

6.1 g + ? g = 9.1 g

Back

3 g

Front

How many of each substance are present after the coefficient has been added in 3Pb(SO₄)₂? Options: 3 Pb and 3 SO₄, 3 Pb and 6 SO₄, 6 Pb and 24 SO₄, 6 Pb and 6 SO₄

Back

3 Pb and 6 SO₄

Front

According to the law of conservation of mass, how much zinc was present in the zinc carbonate?

Back

104 g

Front

Which of the following equations is balanced?
- Equation (a)
- Equation (b)
- Equation (c)
- Equation (d)

Back

Equation (d)