3.9 X 1022 molecules of CO2 = _ moles of CO2

A biochemist carefully measures the molarity of magnesium ion in 47, mL of cell growth medium to be 97.?. Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates.

Potassium bromide (KBr) exhibits predominantly ionic bonding. The K + and Br - ions have electron structures that are identical to which two inert gases?

Give the formula of a compound in unpolluted air

Which combination of protons neutrons and electrons is correct for the isotope of copper - 63?

For this exercise, you can simulate the described conditions by changing the values in the run experiment tool of the simulation.

Energy leaves the sun as light from a region called the?

How many moles of co2 are produced when 10 mol of propane (c3h8) is burned in excess oxygen?

Why are the spheres representing nitrogen and oxygen different colors

How many moles are in 16.94g of water?

Two compound samples are found to have the same mass percentages of the same elements. what can you conclude about the two samples