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Fofino [41]
4 years ago
9

2. Two chemical bonds unite three atoms into a molecule. Which types of bonds are

Chemistry
2 answers:
Radda [10]4 years ago
8 0

Answer : The correct option is, (B) two covalent bonds

Explanation :

Ionic bond : It is defined as the bond that is formed by complete transfer of electrons from one atom to another atom.

That means, the atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom.

The ionic bond is usually formed between a metal and a non-metal.

Covalent bond : It is defined as the bond which is formed when sharing of electrons takes place between the atoms.

This is usually formed between two non-metals.

Metallic bond : It is defined as the bond that is formed from the electrostatic attraction between the free electrons and positively charged metal ions.

As per question, the two chemical bonds unite three atoms into a molecule, it is formed by the covalent bond.

For example : H_2O is formed by the combination of 2 hydrogen and 1 oxygen atom by the two covalent bonds because hydrogen and oxygen is a non-metal element.

Hence, the correct option is, (B) two covalent bonds

Alex777 [14]4 years ago
5 0
B. Two covalent bonds.
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4 years ago
If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?
Darina [25.2K]

The question is incomplete, here is the complete question:

A bottle of rubbing alcohol having aqueous solution of alcohol contains 70% (v/v) alcohol. If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

<u>Answer:</u> The amount of water present in the given bottle of rubbing alcohol is 283.8 mL

<u>Explanation:</u>

We are given:

Volume of bottle of rubbing alcohol = 946 mL

70% (v/v) alcohol solution

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Amount of water present in solution = [100 - 70] = 30 mL

Applying unitary method:

In 100 mL of solution, the amount of water present is 30 mL

So, in 946 mL of solution, the amount of water present will be = \frac{30}{100}\times 946=283.8mL

Hence, the amount of water present in the given bottle of rubbing alcohol is 283.8 mL

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