How many moles of nitrogen are needed to completely convert 6.34 mol of hydrogen?

Which example has 1.8*10^24 hydrogen atoms? 1 mole of hydrogen gas (H2) 1 mole of ammonia (NH3) 1 mole of peroxide (H2O2) 1 mole of water (H2O)

The kw for water at 0 °c is 0.12 * 10-14 m2. calculate the ph of a neutral aqueous solution at 0 °c.

A substance whose shape can easily change is a a. solid. b. powder. c. fluid. d. metal.

An unknown substance has a mass of 15.5 g. When the substance absorbs 1.395*102 J of heat, the temperature of the substance is raised from 25.0 ∘C to 45.0 ∘C. What is the most likely identity of the substance?

How can you prevent the matter you use from becoming trash

What happens when light from the sun passes through any type of matter? the light slows down. the light speeds up. most of the light is absorbed. most of the light is reflected.

What is the chemical name for Fe (HCO3) 2

How are protons, electrons, and neutrons correctly compared

You compare two layers to a because the crust and upper mantle are solid

A substance that speeds up the rate of a chemical reaction is called a. a catalyst. b. a lipid. c. a molecule. d. an element.