The the exact mass is 24.740% (according to the internet) but I’d say that it’s 25
1) A
2)A
3)C
4)A
That should be all of them. Hope this helps?
Answer:
the volume of the same gas at pressure of 1.00atm =737.3ml
The mass of magnesium should be less than 0.09g to enable a faster reaction rate. Magnesium reacts to form a white coating around it which stops the reaction. The lesser the gram the faster the reaction before the coating is formed. It is also advisable to use magnesium fillings to increase the rate of reaction.
PH = - log [concentration of H+]
pH = - log [H+]
pH IS A MEAUSE OF ACIDITY AND BASIDITY OF A SUBSTANCE....
AS ACIDITY OF A SUBSTANCE DEPENDS ON THE IONISATION OF H+
THEREFORE IT IS A MEAUSE...
THE LOWER THE PH VALUE, THE MORE ACIDIC IS THE SUBSTANCE
