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Alenkinab [10]
3 years ago
15

Explain mole concept using any real life example

Chemistry
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

for instance :

water , H²O , and hydrogen peroxide . H²O² , are alike

in that their respective molecules are composed of hydrogen and oxygen atomd . hope its helpful . Good luck :)

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78.9 + 890.43 - 21 = 9.5 x 10^2
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948 or 9.48 x 10^2

There are two sets of rules for significant figures

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This problem involves addition and subtraction, and the rule is

The number of places after the decimal point in the answer must be <em>no greater than the number of decimal places in every term</em> in the sum.

Thus, we have

78.9

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