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d1i1m1o1n [39]
3 years ago
7

Just need help with these two questions

Chemistry
1 answer:
kvasek [131]3 years ago
8 0
B/A hope it help thanks
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The answer and the work please​
Murljashka [212]

Answer:

for what?

Explanation:

8 0
3 years ago
Chemical and physical properties for Benzoyl peroxide?
pishuonlain [190]
  1. <u>Physical Properties :</u>
  • 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. <u>Chemical Properties :</u>

  • 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.

<u>Explanation:</u>

  • 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.

4 0
3 years ago
17.<br> What do you know about a chemical compound by looking at its chemical formula
Bas_tet [7]

Answer:

The number and the kinds of atoms in the compound

Explanation:

  • A chemical formula of a compound contains symbols o the atoms of the elements present in the compound as well as the number of atoms of each element in the form of subscripts.
  • Therefore it helps us to know the elements in a compound and the number of atoms in the compounds.
5 0
4 years ago
Why is the melting of ice a physical change? It changes the chemical composition of water. It does not change the chemical compo
snow_lady [41]
It does not change the chemical in the composition of water. hope it helps
3 0
3 years ago
Read 2 more answers
All atoms of a given element have the same number of____
maksim [4K]
<h3>Answer:</h3>

Protons

<h3>Explanation:</h3>
  • An atom is the smallest particle of an element that can take part in a chemical reaction.
  • All atoms of the same element are similar in that they have the same number of protons.
  • Atoms of the same elements may have a different number of electrons or neutrons but will always have the same number of protons.
  • Atoms of the same elements with a different number of neutrons are known as isotopes.
  • When neutral atoms gain or lose electron(s) they form charged atoms known as ions.
3 0
4 years ago
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