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steposvetlana [31]
3 years ago
6

Air is an example of a mixture because the elements and compounds that make up air retain their individual properties.

Chemistry
1 answer:
inysia [295]3 years ago
7 0

Answer:

True

Explanation:

True definition of a mixture itself

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What is the mass percent of oxygen (0) in SO2?
vazorg [7]

Answer:

D. (16.0 g + 16.0 g) × 100% / (32.1 g + 16.0 g + 16.0 g) = 49.9%

Explanation:

Step 1: Detemine the mass of O in SO₂

There are 2 atoms of O in 1 molecule of SO₂. Then,

m(O) = 2 × 16.0 g = 16.0 g + 16.0 g = 32.0 g

Step 2: Determine the mass of SO₂

m(SO₂) = 1 × mS + 2 × mO = 1 × 32.1 g + 2 × 16.0 g = 32.1 g + 16.0 g + 16.0 g = 64.1 g

Step 3: Detemine the mass percent of oxygen in SO₂

We will use the following expression.

m(O)/m(SO₂) × 100%

(16.0 g + 16.0 g) × 100% / (32.1 g + 16.0 g + 16.0 g) = 49.9%

5 0
3 years ago
1. Aluminium reacts with chlorine to produce aluminium chloride. The balanced reaction is:
Anton [14]

Answer:

Explanation:

es

6 0
3 years ago
Which is a characteristic of most nonpolar compounds?
iVinArrow [24]
Nonpolar compound would be symmetrical
4 0
3 years ago
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A block of has a length of 7cm, a width of 4cm, and a height of 10cm. Its mass measures 840g. What is it's density?
andriy [413]

Answer:

Explanation:

Density is

mass / volume = d

Mass:

840g

Volume:

7 cm x 4 cm  x 10 cm = 280 cm^3

840g / 280 cm^3 = 3 g/cm^3

3 0
2 years ago
Consider the nuclear equation below.
Dovator [93]

Answer:

its NOT C

Explanation:

8 0
3 years ago
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