Heat energy caused by friction is usually a waste product that results when energy

Chemistry

1 answer:

Mariana [72]3 years ago

7 0

This is ussualy caused beacause energy changes form or performs work

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Find the volume of the rock in the images by the amount of water that it displaces

lyudmila [28]

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2 years ago

How many total moles of ions are released when the following sample dissolves completely in water? Enter your answer in scientif

Katena32 [7]

Answer: The number of moles of strontium bicarbonate is $7.5\times 10^{-9}mol$

Explanation:

Formula units are defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is $6.022\times 10^{23}$

We are given:

Number of formula units of $Sr(HCO_3)_2=4.55\times 10^{15}$

As, $6.022\times 10^{23}$ number of formula units are contained in 1 mole of a substance.

So, $4.55\times 10^{15}$ number of formula units will be contained in = $\frac{1}{6.022\times 10^{23}}\times 4.55\times 10^{15}=7.5\times 10^{-9}mol$ of strontium bicarbonate.

Hence, the number of moles of strontium bicarbonate is $7.5\times 10^{-9}mol$

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Cu(s), CuCl2 (0.50 M) || Ag(s), AgNO3 (0.010 M) 1.

Gnoma [55]

Answer:

See explaination

Explanation:

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See attachment for the step by step solution of the given problem.