Significant Figures
These are never significant
What are leading zeros
The number of spaces the decimal moves.
What does the exponent represent?
a decimal-based system of measurement used worldwide for science, commerce, and daily life
The lowest whole number ratio of elements in a compound
What is the empirical formula?
Observed and measured as sample changes identity.
What is a chemical property?
These are only significant if there is a decimal
What are trailing zeros?
Always raised to an integer exponent.
What is the base factor 10?
1/1000th
What is a milli- ?
The actual whole number ratio of elements in a compound
What is the molecular formula?
Observed through the senses.
What is a physical property?
These are always significant
What are non-zero digits?
Represents and very small standard number
What is a negative exponent?
Fundamental units from which all measurements are based upon.
What is a base unit?
Dividing by the molar mass of each compound to convert from grams to moles.
What is the first step of finding an empirical formula?
Flammability
What is an example of a chemical property?
These are sandwiched.
What are captive zeros? (or zeros between non-zero digits)
Represents a very large standard number
What is a positive exponent?
The base unit for Temperature
What is kelvin?
The second step of finding an empirical formula
When do you divide each of the mole values by the lowest found mole value?
Boiling Point
What is an example of a physical property?
What are the rules for calculating with sig figs?
A real number greater than or equal to 1 and less than 10.
What is the coefficient?
Represented by SI
What is the International System of Units?
Represents the number of each element in the compound.
What is the subscript after the element symbols in a compound?
A physical change from one state of matter to another without breaking and reforming chemical bonds.
What is a phase change?