Calculate H3O + when OH - is 2*10 - 8

An outside thermometer reads 57°F. What is this temperature in °C? Round your answer to the nearest whole number.

How many grams of calcium hydride are needed to form 4.850 g of hydrogen gas? express your answer using four significant figures?

Write a balanced equation to show the reaction of sulfurous acid with caesium hydroxide to form water and caesium sulfite.

What subatomic particle gives off visible light when it drops back down to a lower energy state? A) proton B) neutron C) electron

Plutonium-240 decays according to the function / [Q (t) = Q _{o}e ^{-kt}/] where Q represents the quantity remaining after t years and k is the decay constant, 0.00011 ... How long will it take 36 grams of plutonium-240 to decay to 12 grams?. A.

How to separate a mixture of iron dust and zinc dust

When the equation Fe Cl2_> FeCl is balanced, what is the coefficient for C12? explain why each answer is correct or incorrect and submit quiz a. 1 b. 2 c. 3 d. 4.

How many milliliters of 12.0 M hydrochloric acid contain 3.646 g of HCl (36.46 g/mol) ? Group of answer choices

What would happen to temperatures on Earth if the sun's heat were not distributed throughout the atmosphere

How much hydrogen gas produced with 50 ml of hcl?