Chem chemical change p1

Question 1

mole

Answer 1

the amount of substance that contains the same number of elementary units as there are carbon-12 atoms in exactly 12 g of carbon-12

Question 2

Avogadro’s constant (Nᴀ)

Answer 2

number of atoms or molecules in one mole of substance

Question 3

molar concentration (c)

Answer 3

number of moles of solid per volume of solution in liters

Question 4

water of crystallisation

Answer 4

water contained in crystals of certain salts

Question 5

empirical formula

Answer 5

chemical formula that shows the simplest ratio between the atoms in a compound

Question 6

molecular formula

Answer 6

chemical formula that shows the actual number and types of atoms in a formula

Question 7

standard solution

Answer 7

any solution that has a precise, known concentration of a substance

Question 8

limiting reagents

Answer 8

the reactant that is consumed completely. It determines the maximum amount of product that is made.