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Zepler [3.9K]
3 years ago
10

PLEASE HELP!

Chemistry
2 answers:
castortr0y [4]3 years ago
7 0

Answer:

A rolling ball eventually slows down and comes to a stop

Gekata [30.6K]3 years ago
6 0

Answer:

A

Explanation:

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I need help with this pls i don’t understand it
FromTheMoon [43]

Answer:

Inner core - A

Outer core - B

Mantle - C

Asthenosphere - F

Lithosphere - E

Crust - D

7 0
1 year ago
How is burning magnesium different than burning methane
olya-2409 [2.1K]

You can stop the burning of methane with water or carbon dioxide extinguishers but problems arise when you try to use this to stop the burning of the magnesium.

Explanation:

To burn magnesium (Mg) and methane (CH₄) you need to react them with oxygen:

2 Mg (s) + O₂ (g) → 2 MgO + heat

CH₄ (g) + 2  O₂ (g) → CO₂ (g) + 2 H₂O (g) + heat

However at that temperatures magnesium (Mg) is able to react with water (H₂O) and carbon dioxide (CO₂).

Mg (s) + 2 H₂O (l) → Mg(OH)₂ (s) + H₂ (g)

2 Mg (s) + CO₂ (g) → 2 MgO (s) + C (s)

So the safe option to stop the burning of the magnesium is to limit the oxygen in the air.

we have used the following notations:

(s) - solid

(g) - gas

(l) - liquid

Learn more about:

combustion reactions

brainly.com/question/13824679

#learnwithBrainly

6 0
3 years ago
In a ceiling fan, N, electrical energy is converted to M, Kinetic energy. Some of the energy is "wasted" as heat. What is someth
Kruka [31]

Answer: It's D

Explanation:

I just did this question and i picked C but it's actually D

6 0
3 years ago
Read 2 more answers
What gives the gem amethyst its purplish color?
Aleks [24]
Answer will be B:Iron
6 0
3 years ago
Read 2 more answers
Identify an environmental condition in the ecosystem above and how it can affect the ecosystem
sattari [20]
Deforestation- there are no more homes for some animals and insects after a forest is cut down.

desertification- when deserts get larger it destroys other ecosystems.
4 0
3 years ago
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