What kind of change (physical or Chemical) occurs when a compound is separated into its individual elements?

Would the amount of dissolved oxygen in the Missouri River increase or decrease if large amounts of chemical waste were dumped into it? Remember that chemical wastes feed microorganisms

The suns mass is very small compared to earth true or false

Why is water considered to be a universal solvent? Water is an ionic substance, so all substances dissolve in it. Water is nonpolar covalent, so all substances dissolve in it.

How can you distinguish between a solution, colloid, and suspension?

What is the volume of a 3.0 M solution of hydrochloric acid that contains 1.50 moles of solute?

A flask of fixed volume contains 1.00 mole of gaseous carbon dioxide and 88.0 g of solid carbon dioxide. the original pressure and temperature in the flask is 1.00 atm and 300. k. all of the solid carbon dioxide sublimes.

Oxygen is in group 16 of the periodic table. An oxygen ion (O2-) has a charge of - 2. Which of the following would be most likely to combine with an oxygen ion to form a new compound?

How and why - Why does ice float on water

Measurements show that enthalpy of a mixture of gaseous reactants decreases by 228. kJ during a certain chemical reaction, which is carried out at a constant pressure.

When 9.8 mol Fe react with 11.5 mol HCl, what is the limiting reactant and how many moles of H2 can be formed? unbalanced equation: Fe + HCl yields FeCl3 + H2 HCl is the limiting reactant, and 3.