(a) Ca(H2PO4)2 is an example of a compound called __________________ (acid salt / basic salt / normal salt).
(b) Write the balanced equation for the reaction of : A named acid and a named alkali.
(a)Acid salt (b) 2NaOH+H2SO4⟶Na2SO4+2H2O
(i) Calculate the percentage of phosphorus in the fertilizer superphosphate Ca(H2PO4)2. (H = 1; O = 16; P = 31; Ca = 40) (ii) Write out and balance the following equation correctly: Ca3(PO4)2 + H2SO4 → Ca(H2PO4)2 + CaSO4 (iii) Copy and complete the following sentence: Superphosphate is an example of a compound called___________(acid salt / basic salt / normal salt).
Name the salt which on hydrolysis forms
(a) acidic (b) basic and
(c) neutral solution. Give a balanced equation for each reaction
(a) Name three acids used in the laboratory.
(b) Name one indicator that turns red on adding a base.
(c) Name the reaction when an acid is mixed with a base.
(d) Write the name of two indicators that occur naturally.
(e) Name three types of salts. Give one example of each type of salt.