Question

i just need the letter answers. no need to explain.

MULTIPLE CHOICE. Choose the one alternative to 1) The reaction between strontium hydroxide and chloric acid produces A) two strong electrolytes B) a molecular compound and a weak electrolyte C) a molecular compound and a strong electrolyte D) two molecular compounds E) two weak electrolytes B - CE2 2) Which of the following are weak acids? A) HE, HB В) НЕ HL, HNO3, HB D) HI, HF E) none of the above . 3) Which of the following are weak electrolytes? HNO3 HF NH3 LIBE A) HNO3, HF, NH, LIBE B) HNO3, LIBE CHF, NH3 D) HNO3, NH3, LiBr E) HF, LIBE 4) The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is A) H2SO4 (aq) + 2KOH (aq) - 2H20 (1) + K2504 (8) B) 2H+ (aq) + 2KOH (aq) - 2H20 (1) + 2K+ (aq) H2SO4 (aq) + 2OH- (aq) - 2H20 (1) + S042- (aq) D) 2H+ (aq) + 20H- (aq) - 2H20 (1) E) H2SO4 (aq) + 2KOH (aq) - 2H20 (1) + K2SO4 (aq) 5) In which reaction does the oxidation number of hydrogen change? A) 2Na (s) + 2H20 (1) - 2NaOH(aq) + H2 (8) B) SO2(g) + H20 (1) - H2SO3 (aq) CHCI (aq) + NaOH(aq) - NaCl (aq) + H20 (1) D) Cao (s) + H20 (1) - Ca(OH)2 (s) E) 2HCIO4 (aq) + CaCO3 (s) - Ca(CIO4)2 (aq) + H20 (1) + 02 (8)

Answer 1

The aeaetion between strontium hydroxide and chloric ac'd produces C) a and mole cular Com pound Streng eleco y Sthrontium hydoxide t Chloric -Salt H2o acid Base Mole calan Compoura e echyte acid (8) HF weak Weak elechro yas 3) NH3 Cweak a cids ba Jes and weak ae weak elechoyt es) 1 Balenced mole cular eauation 42KOH H20 caa) K2s0, ca) H250 5) (A) 2H2 2. Na Oxi datih COxicletion mumben mumbe of

14) to an coYvesponds negative exother mi c bro cess 4 not 15 tero for (P) Se Cg)

24 hours 24 x 60 x 6o sec 6 400 зес A watt 15/ec 100 watt J 2 BaO 2Ba t 2 (E) 13 327 mass o 8a Ato mic Ba = 137 327 x 3 2 mol вa -7 eroduc> I l07 KJ Anergs Ba 45.7 kJ 274 65

18 2 Na2 0 2 H20 (E) Molar mass of Na201 (23x2)+(6 (4.6 732) 78Imo 2 mol (72)S Produce KJ hea 26 126x10 Na202 KJ 9. o kJ

Mole cular weight of 6 (A) 139. 80 Iranud Specific heat - 226 J MOlar heat 226 59. 08 capa city mol ак 3.1 20 () N2+20 2 No(9) mo k 2NO 2 NO O2. H I4.2 KJ N2 12 2NA- 2 NO-i OL 4H 66.4+ 114.2 1-1 2O