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mina [271]
3 years ago
8

When a student combed his dry hair for a long time, his hair began to stand up. Which of these has MOST LIKELY happened? A) The

comb and hair have become charged with similar charges. B) The comb and hair have become charged with opposite charges. C) The comb has become charged, but the hair has remained neutral. D) The hair has become charged, but the comb has remained neutral.
Chemistry
2 answers:
Alecsey [184]3 years ago
5 0
B. 

Opposites attract, likes repel.
GrogVix [38]3 years ago
3 0

Answer:

B

Explanation:

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0.06105 moles is the number of moles of water lost.

<h3>What is molar mass?</h3>

Molar mass is defined as the mass in grams of one mole of a substance.

Given data:

Mass of water = 1.1g

Molar mass water = 18.016 g/mol

Moles of water =?

These quantities are related by the following equation;

Moles = \frac{Mass}{Molar \;mass}

Substituting the values of the quantities and solving for moles, we have;

Moles =  \frac{1.1 }{18.016} = 0.06105 moles.

Hence, the 0.06105 moles is the number of moles of water lost.

Learn more about molar mass here:

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2 years ago
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