When a nonmetal oxide reacts with water, it forms anoxoacid with the same nonmetal oxidation state. Give the name and formula of the oxide used to prepare each of these oxoacids:(a) hypochlorous acid; (b) chlorous acid; (c) chloric acid; (d) perchloric acid; (e) sulfuric acid; (f ) sulfurous acid; (g) nitricacid; (h) nitrous acid; (i) carbonic acid; ( j) phosphoric acid.

(d) the ion with 74 electrons, 116 neutrons, and a +3 charge

Three samples (A, B, and C) of pure substance composed ofsodium, sulfur, and oxygen were isolated and purified. Elemental analyses showed that sample-A contained 1.62 g sodium, 1.13 g sulfur and 2.25 g oxygen; sample-B contains 1.60 g sodium,2.23 g sulfur, and 1.67 g oxygen; while sample-C contains 1.46 g sodium, 1.02 g sulfur, and 2.03 g oxygen. Determine whether A, B,and Care samples of the same or different compounds.

2. What is the mass percent of iron in Fe(NO3)3 • 9H2O?

7. Balance the following equations: a) For the synthesis of urea, a common fertilizer CO2(g) + NH3(g) → NH₂CONH2(s) + H2₂0 (1)

What is the chemical formula for sodium perchlorate?

Can you answer part B

Calculate the number of grams of sodium in 7.5 g of each of the following sodium-containing food additives.  NaCl (table salt) Na3PO4 (sodium phosphate) NaC7H5O2 (sodium benzoate)  Na2C6H6O7 (sodium hydrogen citrate)

Predict the compound formed between a cesium atom and a sulfur atom. Write it's formula. Classify the compound as ionic, acid, or molecular. Explain, with specific details, how you arrived at the formula.  Be brief and relevant.

Many familiar substances have common, unsystematicnames. For each of the following, give the correct systematicname: (a) salt peter, KNO3; (b) soda ash, Na2CO3; (c) lime,CaO; (d) muriatic acid, HCl; (e) Epsom salts, MgSO4; (f) milkof magnesia, Mg(OH)2.