What is the percent composition by mass of ammonium chloride in a saturated solution of ammonium chloride at 45°C

Which of the following industrial processes involves a voltaic cell rather than electrolysis? A. coating forks and knives with silver B. extracting sodium from sodium hydroxide C. reinforcing the hull of a ship so that it resists corrosion D.

What class of compounds do fats belong to

A student prepares a weak acid solution by dissolving 0.2000 g HZ to give 100. mL solution. The titration requires 33.5 mL of 0.1025 M NaOH. Calculate the molar mass of the acid.

How many mL of 50% (v/v) alcohol should be mixed with 10% alcohol to obtain 50mL of 35% (v/v) alcohol? Round to the hundredths place.

Which statement best describes the way a catalyst works? A. It decreases the value of ΔH. B. It increases the value of Eact. C. It increases the value of ΔH. D. It increases the value of ΔG. E. It decreases the value of Eact.

What is the volume of 20.0g of benzene (0.88g)

Which compounds have the empirical formula CH2O? A. C2H4O2 B. C3H6O3 C. CH2O2 D. C5H10O5 E. C6H12O6

An element is a pure substance. It can not easily be broken down into parts by physical means. A) True B) False

Sodium phosphate and calcium chloride react to form sodium chloride and calcium phosphate. If you have 379.4 grams of calcium chloride and an excess of sodium phosphate, how much calcium phosphate can you make?

What is the maximum number of electrons in the second electron shell, closest to the nucleus?