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Andre45 [30]
3 years ago
6

What happens when a new star contracts?

Chemistry
1 answer:
grin007 [14]3 years ago
6 0

Answer:

The outer shell of the new star will start to expand.

Explanation:

The new star will continue to glow for millions or even billions of years. As it glows, hydrogen is converted into helium in the core by nuclear fusion. The core starts to become unstable and it starts to contract. The outer shell of the star, which is still mostly hydrogen, starts to expand.

Explanation provided by:

StarChild: Stars - NASA

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How are industrial and agricultural pollution similar?
Norma-Jean [14]

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Both of them are polluting the environment. Industrial pollution is the pollution caused from industries and it can be in different forms such as water waster or air pollution. Agricultural pollution is caused from plants or crops that are grown by the farmers. For example, pesticides that may ruin the soil and is dangerous for our environment.

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3 years ago
The combustion of propane C,H, produces carbon dioxide and steam.
Julli [10]

Answer:

23 moles

Explanation:

Given data:

number of moles of propane = 7.5 mol

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C₃H₈ + 5O₂     →      3CO₂ + 4H₂O

Now we will compare the moles of propane and carbon dioxide.

                        C₃H₈             :             CO₂

                             1                :               3

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22.5≅ 23 moles

7 0
3 years ago
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