Which of these is an element? A. carbon B. carbon dioxide C. air D. water

2 answers:

Sloan [31]3 years ago

8 0

I think it's B carbon dioxide

4 0

Elements are pure substances. Carbon is the only one that is pure.

You might be interested in

grandymaker [24]

There are three molecules of hydrogen.

5 0

3 years ago

Anastasy [175]

Explanation:

the coefficient of hydrogen is 3

8 0

3 years ago

joja [24]

Answer:

a chart

Explanation:

a chart a chart is the answer

8 0

2 years ago

valkas [14]

Answer:

Explanation:

because moles = mass /mr

so 81/18(mr of H2O=2+16)

moles =4.5

hope this helps:)

7 0

3 years ago

Ann [662]

Answer:

Explanation:

8 0

2 years ago