Answer: Here goes ur answer
CO2
Explanation:
You would use the formula:
n =
Where m is the mass, and M is molar mass (the periodic table would be used for this)
In this case, we need to rearrange the formula to find m
m = nM
= 5.40 x 6.941
= 37.5g
Hope this helped! Ask me if there's any part of the working you don't understand :)
The answer should be 12 since 4 x 3 = 12
This is because ammonia is NH^3 and if it has a number before it you multiply it with the rest of the chemical equation.
I hope this helps
Answer: 50%
Explanation: 50% or more of plant and animal species on Earth are found in tropical rainforests.