H2SO4 is sulphuric acid.
The letters and numbers are: -
2 x H = 2 hydrogen atoms
1 x S = 1 sulphur atom
4 x O = 4 oxygen atoms.
In strictest chemical terms , the numbers after the letter symbol should be written 'subscript'.
H2SO4 is sulphuric acid
KBrO3 and KBr do not react with each other because they have same cation K+, but separately they react with H2SO4. 2KBrO3 + H2SO4 -------> K2SO4 + 2HBrO3 2KBr + H2SO4 ----------> K2SO4 + 2HBr
+6 for S, +1 for each H, -2 for each O
The first solution is more concentrated because it contains 6 moles of H2SO4 per one liter of solution. The second solution is less concentrated because it contains 0.1 moles of H2SO4 in one liter. In equal amounts of each example, the first would have more H2SO4.
+1 for H +6 for S -2 for each O
how 2.5N H2SO4 prepared from concentrated H2SO4
Its sulfuric acid
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