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3 years ago

3. Could a molecule contain only one atom?

1 answer:

8 0

A molecule is defined as two or more atoms of the same element different element that are bound together. A molecule may be homonuclear, which means, it consists of atoms of one chemical element, as with oxygen (O2); or it may be heteronuclear, a chemical compound composed of more than one element, as with water (H2O).

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Ionic bonds are strong; therefore, ionic compounds

Bess [88]

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3 years ago

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What is the percent composition of hydrogen in vinegar (CH3COOH)?

barxatty [35]

Answer:

%H = 6.72 %

Explanation:

Percent composition of an element is the total mass of that element divided by the molecular mass of compound (or molecular mass) of which it is present in.

So,

Percent composition of Hydrogen will be given as,

%H = Total mass of H / Molecular Mass of Acetic Acid × 100

So,

Total Mass of H = 1.01 × 4 = 4.04 g

Molecular Mass of Acetic acid = 60.052 g/mol

Putting values in above formula,

%H = 4.04 g/mol ÷ 60.052 g/mol × 100

%H = 6.72 %

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3 years ago

Which unit measures mass?

Artyom0805 [142]

kilograms are the unit that measures mass

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3 years ago

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Sergio039 [100]

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3 years ago

Explain the sharing of electrons between a water molecule that forms four hydrogen bonds with the other four water molecules

Kazeer [188]

Answer:

The sharing of electrons between a water molecule that forms four hydrogen bonds with the other four water molecules:

Explanation:

The hydrogen bond is a weak electrostatic force of attraction that exists between a covalently bonded H-atom and a highly electronegative atom like N,O or F.

In the case of the water molecule,

the highly electronegative atom is Oxygen and the intermolecular hydrogen bond in water is as shown below:

Thus H-bond is a weak electrostatic attraction formed between H-atom and O-atom in water.

8 0

3 years ago