Chemical bonds! which includes covalent, ionic, and hydrogen bonds.
I think you just mean
<span>"How many liters are in a milliliter?"
There are 1,000</span> <span>milliliters in a liter, so a millileter is just one thousandth of a liter or .001 liters
</span>
Well, you need
1: at least one variable
2: A formula... example: f(x)
3: numbers
They're called powers of ten. they're easy to represent as exponents.