Answer:
192g
Explanation:
so for this find out there moles of CH4 by moles=mass/mr
48/16=3 then use molar ratio 1:2 so times it by 2 which is 6 moles. then uses mass =moles*mr so 6*32=192g is the answer hope this helps to understand.
Answer:
im pretty sure 2+
Explanation:
subtract the electrons from the protons
Answer: False
Explanation:
In chemical reactions new substances are formed.
Hello!
To find the number of moles in a sample of 4.57 x 10^24 atoms, we need to use Avogadro's number, which is 1 mole = 6.02 x 10^23.
To find how many moles, we divide the given sample by Avogadro's number.
(4.57 x 10^24) / (6.02 x 10^23) ≈ 7.59136
Using the amount of significant figures given (3), the answer is 7.59 moles of neon (Ne).