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vazorg [7]
3 years ago
10

Indicate whether the following represents a Chemical or Physical change: Gasoline burns in air

Chemistry
2 answers:
valina [46]3 years ago
8 0

Answer:

Chemical

Explanation:

Whenever "burns" is being used, most of the time it is a chemical change

viktelen [127]3 years ago
8 0

Answer:

chemical change

Explanation:

it's a chemical change because when gas burn it produces water and carbon dioxide

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Answer:

B) Ionic bonds are formed when one atom takes another atom's electrons, while covalent bonds are formed when two atoms share electrons.

Explanation:

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What happens to the potential energy of water in a stream as gravity pulls it downhill
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I believe it becomes kinetic energy, however I’m not entirely sure. I hope it helped though.
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A compound's properties are different than the properties of the elements that make it up.
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3 years ago
Determine the mass of SO₂ that contains 6.075 × 10^26 S atoms.​
Misha Larkins [42]

Avogadro's law states that in a mole of any substance, there are 6.022 \times 10^{23} atoms. This means that in the given sample, there are

\frac{6.075 \times 10^{26}}{6.022 \times 10^{23}}=1008.8010627 \text{ mol}

  • The atomic mass of sulfur is 32.06 amu.
  • The atomic mass of oxygen is 15.9994 amu.

So, the atomic mass of sulfur dioxide is

32.06+2(15.9994=64.0588 \text{ g/mol}

Therefore, the mass is:

(64.0588)(1008.8010627)=\boxed{64620 \text{ g (to 4 sf)}}

7 0
2 years ago
Find the volume of a cereal box that has the dimensions of 35.2 cm x 220 cm x 6.0 cm
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Answer:

Volume = 35.2×220×6.0 = 46464 centimeters³

Explanation:

3 0
3 years ago
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