3 years ago

ASAP HELP WILL MARK BRAINLIEST FOR BEST ANSWER. MUST ANSWER WITHIN 6 MIN!!!

Chemistry

2 answers:

Vesnalui [34]3 years ago

7 0

Answer:

3 molecules

Explanation: i got it right on the test, also because the 2 other ones are compounds because they have hyrdogen and oxygen attached and molecules just have particles of one element attached

Dafna1 [17]3 years ago

3 0

Answer:

3 molecules

Explanation:

You might be interested in

How many O2 molecules react with 47 CH4 molecules according to the preceding equation CH4 + O2 → CO2 + H2O

natka813 [3]

I think 93.71 mol.
You need to use stochio

8 0

3 years ago

Can I get some urgent help please?

ololo11 [35]

Answer:

hi here goes your answer

Explanation:

iv. The lower the PH, the weaker the base

5 0

3 years ago

Law of conservation of mass to explain why a chemical equation must be balanced?

SOVA2 [1]

Chemical equations must always balance due to the principles outlined in The Law Of Conservation of Matter. This scientific law states that matter cannot be created out of nothing nor can it be destroyed.

7 0

3 years ago

Read 2 more answers

A small piece of Cr metal reacts with dilute HNO3 to form H2 (g), which is collected over water at 18 C in a large flask. The to

Sauron [17]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The partial pressure is $P_p= 737.5 mm \ of \ Hg$