<h2><u>
Properties of Water Essential to Life</u></h2>
<u></u>
- Water is known to be the universal solvent because of <u>its ability to dissolve more particles</u> than any other liquid.
- Cohesion is the <u>property of water to attract other molecules</u>. This helps in making solutions that are essential for most life to propagate.
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<u>Answer:</u> The number of electrons in given amount of silver are
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
......(1)
We are given:
Mass of silver = 7.0 g
Molar mass of silver = 107.87 g/mol
Putting values in equation 1:
According to the mole concept:
1 mole of a compound contains number of particles.
Number of electrons per atom of silver = 47
So, 0.065 moles of silver will contain = number of electrons
Hence, the number of electrons in given amount of silver are
Answer:
Explanation:
NaCl sodium Chloride as ordinary salt
Naf sodium fluoride is used in toothpaste which we use every day
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