3 years ago

PLS HELP (science)

Chemistry

2 answers:

nadezda [96]3 years ago

5 0

Answer:

hello I will answer ur question if u answer mine

Explanation:

nata0808 [166]3 years ago

3 0

1. Two
2. Ten
3. Eight
4. Five
5. Seven
Just count the number number of substances, the subscript(number at the bottom) tells you how many of it there is. Then you check if there is a coefficient(number in front of all the substances) and if there is a number you multiply you previous answer by it. The coefficient tells you how many molecules there is. Your final answer is the number of atoms!

You might be interested in

The most common isotopic forms of hydrogen are ordinary hydrogen (1H) and deuterium (2H), which have percent compositions of 99.

Alborosie

Answer:

0. 000115

Explanation:

A percentage is defined as a ratio with a basis of 100 as total substance. Convert a percentage to decimal implies to divide the percentage in 100 because decimal form has as basis 1.

For the isotopic forms:

1H: 99.98% → As percent.

99.98% / 100 = 0.9998 → As decimal form.

2H: 0.0115% → As percent.

0.0115% / 100 = <em>0. 000115</em>→ As decimal form.

5 0

4 years ago

What is the correct formula for

suter [353]

Correct formula for what?

3 0

3 years ago