How many moles of magnesium are needed to react with 3.0 mol of O2?

2Mg (s) + O2 (g) → 2MgO (s)

Explain what an acid, a base and an alkali are.

Why would it be hard to find I the ideal light intensity if the temperature was very hot or cold

HALP Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: () BaO2 + () H2SO4 → () H2O2 + () BaSO4

Atoms that have the same number of outer electrons ... a.) are all nonmetallic elements b.) are all metallic elements c.) must be atoms of the same element d.) belong to the same family of elements

How to convert grams CaCo3 to mg/L as CaCo3?

How many metaloides are found on the periodic table

Which of the following is considered to be a chemical property of matter?

How does percent composition by mass contribute to writing a balanced equation?

Raising the temperature of a reacting system increases the rate of the reaction, but does NOT increase the a) activation energy b) number of collisions c) fraction of the reacting particles which possess energies greater than the activation energy

If you have 60 grams of MgCl2 in 5 liters of solution, what is the molarity of this solution?