Please help I need this ASAP! Will give Brainliest!! 1. What mass of precipitate is formed when 358 mL of 1.58 M CuNO3 is mixed with 491 mL of 0.87 M Ba(OH)2?

2.A titration is performed on a 25.0 mL sample of calcium hydroxide. A volume of
46.0 mL of a 0.15 M solution of nitric acid is used to reach to the end point.
Calculate the concentration of the calcium hydroxide.

Draw two cyclic constitutional isomers of cis-1

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.