Which of the following chemical equations is NOT correctly balanced?

1 answer:

6 0

To see if an equation is balanced, make sure that each side of the reaction has an equal number of the types of atoms. The one that has a mismatch is A

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PLEASE HELP!!!!! NEED THE ANSWER FAST!!!

PIT_PIT [208]

The answer is a. <span>changes in nucleotides of a DNA molecule that affect the genetic message.</span>

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3 years ago

Which of the following is not example of a science? Geology astronomy astrology ecology

andreev551 [17]

The answer is astronomy. There is no ÓLOGY´ at the end of it.

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3 years ago

C5H8+ _02 = 8h2o+5co2

Dimas [21]

To balance this equation you would do whatever you did I TO one side to the other... so if there is 18 oxygen on the right side then there must be 18 on the left. So 18/2 equals 9... the. You equation will be balanced

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3 years ago

How many atoms of hydrogen are in 210 g of hydrogen peroxide (h2o2)?

Flauer [41]

Molar mass:

$1 \ mol \ H_2O_2 = 34.0147 \ g \ H_2O_2$

Grams to moles:

$(210 \ g \ H_2O_2) * ( \frac{1 \ mol \ H_2O_2 }{34.0147 \ g \ H_2O_2}) = 6.17 \ mol \ H_2O_2$

Moles to atoms (Avogadro's number):
$1 \ mol = 6.022 * 10^{22} \ particles$
$(6.17 \ mol \ H_2O_2) * (\frac{6.022 * 10^{22} \ molecules \ H_2O_2}{1 \ mol \ H_2O_2}) * ( \frac{2 \ atoms \ H}{molecule \ H_2O_2})$

Answer:
$= 7.43 * 10^{23} \ H \ atoms$

5 0

3 years ago

Read 2 more answers

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Nutka1998 [239]

Ok bestyyyy :))))).............

4 0

3 years ago