Unit 2 Section Flashcards
Name given to numbers written below the line in a formula to indicate the number of certain kind of atoms?
Subscript
Name given to numbers in an equation placed before a symbol or formula
Coefficient
According to the law of conservation of atoms, there must be (same/different) number of atoms on the product side of the equation as on the reactant side
Same
What does a word equation indicate
The substances that are produced
The quantities of substances involved
What happens in the reaction
The substances that enter into a chemical reaction
The term given to the materials used in a chemical process
Reactants
Name the elements that are diatomic in their free state
H2,O2,F2,Br2,Cl2
What name is given to a number of atoms or molecules large enough to be weighed in grams
Moles
Molar mass is the mass of one mole of any substance (t/f)
True
Molar mass is equal to the atomic mass in grams (t/f)
False
Molar mass has the units ?
G/mol
To find the molar mass of a compound (add,multiply,subtract,divide) the molar mass of the atoms in a compound
Add
The coefficient represents 2 things
- # of moles of products and reactants
- # of molecules or atoms of products and reactants
The mineral resources of our planet are (renewable,no resale) and (fairly evenly,not evenly) distributed
Nonrenewable
Fairly evenly
The molar mass of a compound is the ___ of the molar mass of the atoms in a compound
Sum
If a resource is ____it means that the resources can be replaced by the nature in a short period of time
Renewable
