Which of the following reactions involves two or more substances combining to form a new compound?

Y/3 = 6/x. what does x equal?

If the acid dissociation constant, Ka, for an acid HA is 8 x 104 at 25°C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25°C? A 08%

How many liters of hcl are produced when 11.2 l of chlorine are reacted with excess hydrogen (One mole of any gas occupies 22.4 L under certain conditions of temperature and pressure assume those conditions for this question 112L 56L 224L 22.4L

How do t cells differ from b cells

You perform an experiment producing 15.5 grams of calcium carbonate. If the theoretical yield of the reaction is 18.8 grams, then what is the percent yield

An analytical chemist is titrating 242.5 mL of a 1.200 M solution of hydrazoic acid HN3 with a 0.3400 M solution of NaOH. The pKa of hydrazoic acid is 4.72. Calculate the pH of the acid solution after the chemist has added 1006.

A gas stream contains 18.0 mol% hexane and the remainder nitrogen. the stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. the hexane mole fraction in the gas stream leaving the condenser is 0.0500.

What type of solution is aerated water. why is it so.

What elements form chemical bonds

Which of the following is not a pseudoscientific claim