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3 years ago

Calculate the amount of potential energy a 200 kg car has on top of a 15 m hill

Chemistry

1 answer:

Sever21 [200]3 years ago

6 0

Answer:

29430J

Explanation:

g=9.81m/s^2

Pe=mgh=200*9.81*15=29430J (joule)

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Satellite photos of Neptune and Uranus show that both planets have a bluish color. Which gas in their atmospheres gives them thi

Shtirlitz [24]

Answer:

Methane

Explanation:

5 0

3 years ago

Identify the type of reaction represented by each equation. a: h2 cl2 â†’ 2hcl b: ch4 2o2 â†’ co2 2h2o equation a represents a r

EastWind [94]

The right response is combustion reaction and synthesis reaction.

A hydrocarbon reacting chemically with oxygen to produce carbon dioxide and water is known as a combustion reaction.

$hydrocarbon + O_{2}$ → $CO_{2} + H_{2}O$

The term "synthesis reaction" refers to the chemical process wherein elements combine to generate a single product.

$A + B$ → $AB$

Because hydrogen and chlorine combine to form the molecule of hydrochloric acid in their elemental states, this process is regarded as a synthesis reaction.

For A : $H_{2} + Cl_{2}$ → $2HCl$

Because hydrogen gas and chlorine gas are mixed in their elemental states to create the hydrochloric acid molecule, this process is regarded as a synthesis reaction.

For B: $CH_{4} + 2O_{2}$ → $CO_{2} + 2H_{2}O$

Because methane and oxygen combine to create carbon dioxide and water molecules, this reaction is regarded as a combustion reaction.

Learn more about combustion reaction here:

brainly.com/question/14521417

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3 0

2 years ago

Where is chemistry used?

Lorico [155]

You can find chemistry in daily life in the foods you eat , the air you breathe , and cleaning chemicals . For example , chemistry holds the explanation for why ice floats , while most substances sink when they freeze .

5 0

4 years ago

If 1.320 moles of CH4 reacts completely with oxygen, how many grams of H2O can be formed

laiz [17]

Answer:

47.5 g of water can be formed

Explanation:

This is the reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

Methane combustion.

In this process 1 mol of methane react with 2 moles of oxygen to produce 2 moles of water and 1 mol of carbon dioxide.

As ratio is 1:2, I will produce the double of moles of water, with the moles of methane I have.

1.320 mol .2 = 2.64 moles

Now, we can convert the moles to mass (mol . molar mass)

2.64 mol . 18g/mol = 47.5 g

7 0

3 years ago

Read 2 more answers

Energy in an ecosystem flow from consumers to producers.True of False

Alenkinab [10]

False - A producer always provides food for the consumer.

6 0

4 years ago

Read 2 more answers