How many atom are in 3 moles of Ca (OH) 2

why was the extrapolated final temperature (and not the maximum or minimum recorded temperature) used to determine the heat of solution?

You intend to perform the double aldol condensation reaction in this week's experiment using Ketone X and Aldehyde Y. You mix 0.3 moles of Ketone X with 0.4 moles of Aldehyde X. What is your theoretical yield in moles? Round to the nearest tenth 2.

How many valence electrons does a neutral atom of oxygen have?

What modifications were made to the original Ray Cathode experiment?

Calculate the density of chlorine gas in g/l, at stp. a. 0.32 g/l b. 0.63 g/l c. 1.6 g/l d. 2.9 g/l e. 3.2 g/l

Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO3 (s) → KCl (s) + O2 (g) [unbalanced] How many grams of oxygen are formed when 26.4 g of potassium chlorate is heated?

What element is represented by: 1s^2

Separate samples of a solution of an unknown soluble ionic compound are treated with KCl, Na2SO4, and NaOH. A precipitate forms only when Na2SO4 is added. Which cations could be present in the unknown soluble ionic compound?

What is the pH of 0.50 M H2S (given that Ka=8.91 x 10^-8) ? A. 3.7 B. 1.7 C. 6.9 D. 3.6

With respect to NO and For the reaction NO + O 3 NO 2 + O 2, the reaction was expressing concentrations as molarityare the units of the found to be first order both with respe rate constant k for this reaction?