Chemical reactions problem?

Question

When a solution of nitric acid and sodium hydroxide are mixed, what precipitate if any is formed?

a)No precipitate. This is a neutralization reaction. Water is formed and nitrate and sodium ions move throughout the solution.

b)Sodium nitrate, NaNO3 (s) and water are formed

c)Sodium nitrate, NaNO3 (s)

d)No reaction

When a solution of sodium sulfide and iron (III) chloride are mixed, what precipitate if any is formed?

A)No precipitate
B)Iron (III) sulfide, Fe2S3 (s)
C)Iron (III) sulfide, Fe2S3 (s) and Sodium chloride, NaCl (s)
D)Sodium chloride, NaCl (s)

Answer 1

A and then B

Answer 2

3MgBr2(aq) + 2Na3PO4(aq) --> Mg3(PO4)2(s) + 6NaBr(aq) including KCl could be including ok+ and Cl-. the ok+ and Cl- could stay aqueous because of fact Mg, reacting with Cl- will style MgCl2(aq) and the ok+ will style K3PO4(aq). you will nonetheless get Mg3(PO4)2(s). KCl is without issues soluble leaving ok+ and Cl-. the Sn isn't reactive adequate to displace the ok in KCl so which you would be able to get a answer of KCl(aq) and particularly Sn sitting on the backside of the beaker C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(l), combustion constantly produces CO2 and H2O if comprehensive 2Mg(s) + O2(g) --> 2MgO(s) that's particularly important to appreciate a thank you to do.