1. (sia) ₂BH, THF 2. H₂O2, NaOH 1. LiAlH4, ether 2. H₂O

Antacid tablets are used to neutralize stomach acid and relieve indigestion or acid reflux. Many commercial antacids contain magnesium hydroxide, Mg(OH)2, as the active ingredient. If one tablet of antacid contains 15 mg of Mg(OH)2, then calculate the number of tablets required to completely neutralize 5 mL of stomach acid if the stomach acid is 0.2 M HCl.

ENTS IN GENERAL CHEMISTRY GENERAL CHEMISTRY STUDY SHEET NO. 4 1. Balance the following chemical equations: a) C„H; + O, → CO2 + H,O s b) Al,S, + PbCl,4 PbS, + A1CI, nos 0 c) BaCl, + Na,PO, → Ba, (PO), + NaCl 2. Assume the follon 100

1. (Balance the equation) H,SO+NaOH>H,SO+H,O

3. Pure (glacial) acetic acid doesn't conduct electricity while 1.0 M aqueous acetic acid does, somewhat. Write an equation to show how acetic acid reacts with water to produce ions. (One of those ions is the hydrated H* ion, written as H30*.)

2+ Natural waters often contain relatively high levels of calcium ion, Ca²+, and hydrogen carbonate ion (bicarbonate), HCO3¯, from the leaching of minerals into the water. When such water is used commercially or in the home, heating of the water leads to the formation of solid calcium carbonate, CaCO3, which forms a deposit ("scale") on the interior of boilers, pipes, and other plumbing fixtures. Ca(HCO3)2 (aq) → CaCO3 (s) + CO2(g) + H₂O(1) If a sample of well water contains 0.0016 mg of Ca(HCO3)2 per milliliter, what mass of CaCO3 scale would 1.0 mL of this water be capable of depositing? Mass= g

Magic Acid® is the commercial name for a 1:1 mixture of fluorosulfonic acid, HSO3F, and antimony pentafluoride, SbF5, that generates H2SO3F+ cations – this last species qualifies as a superacid. Can Magic Acid® be diluted in water and retain its superacid property? Justify your answer and include at least one chemical equation.

Ca* OH OH Ca* Ca* Ca* OH OH OH Ca* OH OH Ca OH OH Ca** OH Ca* 2+ Ca(OH) OH Саон A C Which beaker best depicts calcium hydroxide in a beaker of water? ов O A O D O E

Aqueous solutions of ammonia 1NH32 and bleach (active ingredient NaOCl) are sold as cleaning fluids, but bottles of both of them warn: “Never mix ammonia and bleach, as toxic gases may be produced.” One of the toxic gases that can be produced is chloroamine, NH2Cl.Another toxic gas that can be produced is nitrogen trichloride, NCl3. What is the oxidation number of N in nitrogen trichloride?

write a balanced chemical reaction for the reaction of vinegar, CH3COOH(aq) and baking soda, NaHCO3(s)