Answer:
2C₈H₁₈(g) + 25O₂(g)→16CO₂(g) + 18H₂O
Explanation:
To balance an equation, the moles of one element on one side of the equation should be the same as those on the other side of the equation. This is because (as a law of thermodynamics), in a chemical reaction, the matter is not destroyed nor created - atoms are only rearranged.
Answer:define propose devise state and then submit
Ionic compounds form between metals and non metals.
The percent by mass of water in Na2So4 10H2O is 55.9%
calculation
% mass = molar mass of water(H2O) in Na2SO4 .10H2O/ molar mass of Na2SO4. 10H2O x100
that is mass of H2O = 10{ ( 1x2) + 16} = 180 g/ mol
mass of Na2SO4.H2O= { (2 x23)+ 32 + ( 16 x4 ) + 180 = 322 g/mol
therefore the % mass composition = 180/322 x100 =55.9 %
Answer:
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