Information: Adding and Subtracting Using Scientific Notation Whenever you add or subtract two numbers in scientific notation, you must make sure that they have the same
exponents. Your answer will then have the same exponent as the numbers you add or subtract. Here are some
examples. Make sure you understand each step:

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

How many moles are contained in 5.6 l of h2 at stp