How many hydrogen atoms are in 2.20 mol of ammonium sulfide?

A certain ore is 37.3% nickel by mass how many kilograms of this ore would you need to dig up to have 10.0g of nickel

If the pressure on a gas is increased, then its volume will ... ?

What is the reason that some elements are formed inside stars and nowhere else A. only place hydrogen is found in the universe is inside stars B. universe started out as stars, then all the rest of the gas and dust were formed C.

If I have 251.14 grams of citric acid and calcium bicarbonate mixture how much citrus acid do I have?

Why are two nonpolar substances able to dissolve in each other?

Whats 2 properties of iron?

Which light packs the highest energy per photon

Which of the following hydrocarbons will most likely be found around cows?

Campare how the structure and function of a plant is similar to the human body

Definition of isometry.