Chapter 3 - Stoichiometry

Haber process

________**: a very important fertilizer itself and a starting material for other fertilizers made by combining nitrogen.

Chromate

________ and dichromate compounds are carcinogens and should be handled very carefully.

Lord Joseph Lister

Although Fleming is commonly given credit for the discovery of penicillin, there is good evidence that penicillium mold extracts were used in the nineteenth century by ________ to cure infections.

Formula unit

________: Ionic compounds that do not contain molecules.

Objects

________ do not need to have identical masses to be counted by weighing.

Methane

________ is a molecular compound.

Reactants

________ and products must occur in numbers that give the same number of each type of atom among both the ________ and products.

chemical reaction

In a(n) ________, atoms are neither created nor destroyed.

stoichiometric quantities

When chemicals are mixed together to undergo a reaction, they are often mixed in ________.

chemical equation

The ________ for a reaction gives two important types of information: the nature of the reactants and products and the relative numbers of each.

Carvone

________ is a substance that occurs in two forms having different arrangements of the atoms but the same molecular formula and mass.

stoichiometry calculation

In any ________ involving a chemical reaction, it is essential to determine which reactant is limiting so as to calculate correctly the amounts of products that will be formed.

atomic mass we

The ________ use for carbon is an average value reflecting the average isotopes composing it.

positive ions

They knock electrons off the atoms or molecules being analyzed and charge them into ________.

Mole

________**: A unit of measure that has been established for use in counting atoms.