Flashcards in Chapter 3 Deck (13):
What is the average mass of a molecule or formula unit?
To calculate formula mass we find the sum of atomic masses of all atoms in the chemical ____________.
The mass in grams of 1 mole of its molecules or formula units is it’s what?
A pure compound always consist of the same elements combined in the same proportions by ________.
A pure compound can express molecular composition as percent by _________.
The formula showing the simplest ratio of moles of atoms of each component is what?
What is the formula showing the exact number of atoms of each element in a compound?
For the empirical formula we need a ________ number.
We need to do an experiment to find the molar mass of the empirical ____________.
What depicts the kinds of reactants and products and their relative amounts in a reaction?
The numbers in front of the chemicals of the chemical equation are called what?
The letters (s), (g), and (l) in the chemical equations are the ____________ states of the compounds.