#22.) in the reaction 2co(g) + o2(g) → 2co2(g), what is the ratio of moles of oxygen used to moles of co2 produced? select one: a. 1: 1 b. 2: 1 c. 1: 2 d. 2: 2 #23.) according to this chemical reaction, which is the number of grams of fe produced from 3.4 moles of h2? fe3o4 (cr) + 4 h2 (g) → 3 fe (cr) + 4 h2o (l) select one: a. 142 b. 253 c. 102 d. 91.4 #24.) for the reaction 2na + cl2 → 2nacl, how many grams of chlorine gas are required to react completely with 111.9 mol of sodium? select one: a. 3970 b. 7930 c. 1.59e4 d. 2640

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.

What is the final volume in milliliters when 0.641 l of a 34.0 % (m/v) solution is diluted to 23.5 % (m/v)?