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3 years ago

Fill in the blanks with the words given below-

Chemistry

1 answer:

ioda3 years ago

8 0

Answer:

1. Metal.

2. Atom.

3. Homogeneous

4. Compounds.

5. Lustrous

6. Saturated.

7. Colloidal; true.

8. Homogeneous.

Explanation:

1. An element which are sonorous are called metal.

2. An element is made up of only one kind of atom.

3. Alloys are homogeneous mixtures.

4. Elements chemically combines in fixed proportion to form compounds.

5. Metals are lustrous and can be polished.

6. A solution in which no more solute can be dissolved is called a saturated solution.

7. Milk is a colloidal solution but vinegar is a true solution.

8. A solution is a homogeneous mixture.

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When aluminum, AlAl, metal is dipped in an aqueous solution of hydrochloric acid, HClHCl, hydrogen gas, H2H2, is produced with t

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Answer:

Balanced equation: $2Al(s)+6HCl(aq.)\rightarrow 2AlCl_{3}(aq.)+3H_{2}(g)$

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4 years ago

Chemical and physical properties for Benzoyl peroxide?

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Physical Properties :

It is a crystalline colorless solid structure it is soluble in solution such as ether, alcohol, and chloroform but insoluble in water.

It is dangerous when it is dry and is very volatile and decomposes when it reaches 103 c.

2. Chemical Properties :

It causes swelling of the skin and undergoes free radical products that are highly reactive.
It is irritant when it contacts the skin it breaks down to yield oxygen and benzoic acid.

Explanation:

Benzoyl Peroxide is widely used in industry at large scale.
It is formed when there is a reaction between hydrogen peroxide and benzoyl chloride.
Benzoyl peroxide is used in bread and cheese as the bleaching agent and also used in cosmetics as hair coloring.
Because of its antibacterial property and a peroxide group it is applied to the human skin to treat acne.

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