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sertanlavr [38]
3 years ago
14

Though a needle is several times as dense as water, a small needle can be made to float on the surface of water if placed carefu

lly.
a) What could be the reason?
b) Why does a water drop assume spherical shape?
Plastics played an important role in forest conservation. Substantiate the statement.
Chemistry
2 answers:
Alinara [238K]3 years ago
5 0
I believe your answer is B
viva [34]3 years ago
3 0
The water is more dense than the needle so it can withstand the weight. It is the contraction of the water falling faster than the others forming a drop pattern or the water getting smaller so the top looked smaller.
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4 years ago
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irga5000 [103]

Answer:

The number of atoms in 1 mole silver is also 6.022 *10^23 atoms.

Option C is correct.

Explanation:

Step 1: Data given

Mass of 1 mole silver = 107.9 grams

Step 2: Calculate the number of atoms in 1 mole of silver

To calculate the number of atoms in 1 mole, we multiply the number of Avogadro by the number of moles

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Option C is correct.

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KATRIN_1 [288]

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