Question

HRISTINA HERRERA: Attempt 1

Question 9 (2.5 points)
3
Which of the following sets of data are consistent with the law of conservation of
matter?
6
7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.
9
50 g gasoline reacts with 243 g oxygen to form 206 g of carbon dioxide and 97 g
water
12
17.7 g nitrogen react with 34.7 g oxygen to form 62.4 g nitrogen dioxide.
all of these
15
none of these

Answer 1

7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.

Step-by-step explanation:

Here we have the check if the mass of the reactants is equal to the mass of the products.

Reactants

`7.5+50=57.5\ \text{g}`

Products

`57.5\ \text{g}`

The data is consistent with the law of conservation of matter.

Reactants

`50+243=293\ \text{g}`

Products

`206+97=303\ \text{g}`

The data is not consistent with the law of conservation of matter.

Reactant

`17.7+34.7=52.4\ \text{g}`

Products

`62.4\ \text{g}`

The data is not consistent with the law of conservation of matter.

Only the first data is consistent with the law of conservation of matter.