Question

2
3. Sodium chloride reacts with silver nitrate to produce silver chloride and sodium nitrate
(a) Write the equation.
(b) Check whether it is balanced, if not balance it.
(c) Find the weights of reactants and products.
(d) State the law that this equation satisfies.
4. What information does the following chemical equations convey ?
(a) Zn +H,SO. → ZnSO4 + H,
(b) Mg + 2HCI → MgCl2 + H,
5. (a) What are poly-atomic ions? Give two examples.
(b) Name and state the fundamental law that every equation must fulfill.
6. What is the valency of:
(a) fluorine in CaF2 (b) sulphur in SF6 (c) phosphorus in PHZ (d) carbon in CH
(e) nitrogen in the following compounds:
(i) N203
(ii) N2O5
(iii) NO2
(iv) NO
(f) Manganese in MnO, (9) Copper is Cu, (h) Magnesium in Mg3N2​

Answer 1

Explanation:

this is the answer of 3 a and b

Answer 2

Answer:

Heyya!....

Here's it...

Hope it helps....