The number of atoms in a mole of any pure substance is called

How would you use density to identify an unknown substance?

Given a balanced chemical equation between H2SO4 (aq) and KOH (aq) H2SO4 (aq) + 2 KOH (aq) → K2SO4 (aq) + 2 H2O (l) What volume (in mL) of 0.43 M H2SO4 (aq) solution is necessary to completely react with 120 mL of 0.

How is the solar environment friendly

What is the electron configuration of cobalt?

how many grams of solid lithium must be added to liquid after in order to obtain 15.0 L of hydrogen gas at STP?

One mole of which hydrocarbon requires 8 mol o2 to achieve complete combustion to give carbon dioxide and water?

How many bromine atoms are present in 39.9 g of CH2Br2

Chemists use activity series to determine whether which type of reaction will occur?

1. Does the temperature rise or drop when you mix vinegar and baking soda. 2. Does the temperature rise or fall when you mix baking soda and water.

Use the balanced equation from number four above to determine the limiting reactant if we had a mixture of 5.0 moles of Fe and 4.0 moles of O2.