Answer: 
Explanation:
Given
No. of moles of
is 
So, for
moles of 
There are
1 molecule of
contains 1 atom of carbon
i.e. there are 
I don’t know lol but it has high levels of calcium and magnesium which can cause limescale
Answer:
y = 3/2x + 2.5
Explanation:
You can use the slope equation: 
So: 
Then just plug in the one of the original points to find the y-intercept:

And finally turns into: 
Answer:
kgckgchfkfkgkgccghcgcghcghchgcghchgcgjcgghcghcghhgchgccghghccgcghcghcghcghhgccghcghhgchghgcghchchghgcchhhgchgchgchgchchcghhcchgccghhgcchghgcghhchcgghhchhcchhcchhcchfhchcffhcfhcfcfjgvvjvjkhbkbbgjc, hfx,hfxhgcmhgxkyhfckuhchmfckyrzxfchgckyuxjrkutdjcjhkkytd what is this?