What must you always do first when valencing equations?
Put a line where the yield is
100
What does scientific notation do?
It is used to express large and small numbers.
100
In one mile how many yards and feet are there?
In one mile there are 1760 years and 5280 feet.
100
What are the three conversion for moles?
Moles to Particles, Moles to Grams, and Grams to Particles.
100
What can not be broken down any further, empirical or molecular formula?
Empirical Forumla
200
What does balancing an equation do?
Makes the coefficients whole numbers.
200
What are the rules for Multiplication, Divisions and Addition and Subtraction?
For multiplication you must multiply the coefficients and add the exponents. For division you divide the coefficients and then subtract the exponent from the denominator from the exponent in the numerator. For Addition and Subtraction you make sure the decimals line up and and look at the exponents to see if they are the same or different.
200
If there is a decimal point which side of the equation do you start from?
The left side.
200
What is percent composition and how is it solved?
It is the percent of element found in a molecule. In order to solve and find it multiply the molar mass of element/total molar mass of compound then multiply it by 100
200
What is emperical formula used for?
Used to make compounds be expressed in the smallest possible whole number ratio.
300
What must you do when you put a coefficient in front of an element?
You have to multiply the coefficients and subscripts together.
300
In the stair step method what are the 7 measurements in order?
Kilom, Hecta, Deka, Base, Deci, Centi and Milli
300
What is the basic unit of length?
The yard.
300
How can you determine a molar mass of an element?
By using its atomic mass.
300
What are the two things you must know when doing emperical formula?
Molecular and Emperical formula can be identical at times and you can get the molecular formula by doing a whole number factor.