I don’t get this lesson so can somebody help me with the answer plz

Chemistry

1 answer:

lyudmila [28]3 years ago

7 0

Texture is physical
ability to react with other substances is chemical
hardness is physical
tarnish is chemical
temperatures chemical
electrical conductivity is physical
ferment is physical
mass is physical

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<u>Explanation:</u>

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

In both the formulas, the nature of atoms remains the same but the number differs.

For Example: The molecular formula of oxalic acid is $C_2H_2H_4$ but the empirical formula of oxalic acid is $CHO_2$

To calculate the molecular formula, we need to find the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is:

$n=\frac{\text{Molecular mass}}{\text{Empirical mass}}$

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hope it helps you

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