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3 years ago

Give a definition of mixture? Why air is called a mixture?

Chemistry

1 answer:

anzhelika [568]3 years ago

8 0

Question

Give a definition of mixture?

Why air is called a mixture?

Answer:

mixture - substance made by combining two more different materials in such a way that no chemical reaction occurs.

Air is a mixture because it is composed of gases like inert gases, carbon dioxide, oxygen, nitrogen an so on. Also dust particles are present in the atmosphere so air is a mixture .

Explanation:

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quester [9]

Answer:

1.728 mol /(L*min)

Explanation:

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2 years ago

Which compound is used to make asphalt?

Masteriza [31]

Asphalt is a biproduct of making gasoline, diesel, kerosene, jet fuel, all from crude oil pumped from the ground. Asphalt is the garbage or waste that comes out the bottom of the process of distilling those products. They heat the thick oily-sooty gunky asphalt and mix it with rock or sand and make roads out of it. So the compound would be the long hydrocarbon chains.

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2 years ago

Read 2 more answers

Help i just need people to answer the question today

yKpoI14uk [10]

Answer:

1) Hydrogen

2) Methane

3) Carbon

4) Structural isomer

5) Ethene also known as ethylene

6) Hydrocarbons are widely used as fuel

7) Crude oil

Explanation:

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2 years ago

A piece of copper alloy with a mass of 85.0 g is heated from 30. °C to 45 °C. In the process, it absorbs 523 J of energy as heat

Ne4ueva [31]

Answer:

410.196 J/[kg*°C].

Explanation:

1) the equation of the energy is: E=c*m*(t₂-t₁), where E - energy (523 J), c - unknown specific heat of copper, m - mass of this copper [kg], t₂ - the final temperature, t₁ - initial temerature;

2) the specific heat of copper is:

$c=\frac{E}{m*(t_2-t_1)}; \ => \ c=\frac{523}{0.085*(45-30)}=\frac{523}{1.275}=410.196[\frac{J}{kg*C}].$

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2 years ago

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Answer:

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2 years ago