Calculate (34.123+8.60)/(98.7654-1.984) to the correct significant figures?
i am not sure how to determine the wig fig when doing addition division and subtraction all at once.

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Which statement can best be concluded from the ideal gas law?