State definition on science

Metal carbonyls are molecular compounds. assume that you heat and decompose completely 1.322 g of fex (co) y to form 0.377 g of iron. what is the empirical formula of the compound?

The sodium atom contains 11 electrons, 11 protons, and 12 neutrons. what is the mass number of sodium?

I am doing an experiment that calls for 200g of H2SO4. How many moles of H2SO4 is this?

A flask contains 0.450 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.

Take a look at the guidewords listed below. If you wanted to look up the word curiosity, from "Rikki-Tikki-Tavi," in a dictionary, on which page would you search coupon - cousin cow - coyote cure - current curricular - cushion

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda