Why is iron sulfide used in industry?

Alpha particles are helium nuclei. electromagnetic waves. electrons. neutrons.

What will react with oxygen to cause combustion

Why will you never find an atom that has an actual atomic mass equal to the elements average atomic mass?

A tank originally contains 100 gallons of fresh water. Then, water containing 0.5 lb of salt per gallon is poured into the tank at a rate of 2 gallons per minute, and the mixture is allowed to leave at the same rate.

What is the difference between mass number and atomic number

When would a cell use Active Transport? Mark all that apply. a. When the cell needs to move a compound down its concentration gradient. b. When the cell needs to move a compound against its concentration gradient. c.

Examples of gravitational potential energy.

What is a safety rule while using glass beakers

if a solution is saturated, how does the rate of dissolution of a solute compare with it's rate of crystallization?

How are all sounds made?