a laboratory findings four isotopes of iron below, but does not know the exact mass pf the last isotopes. Using the known mass on the periodic table, what is the mass of the lass isotopes

How much carbon is stored in the atmosphere as co2

An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.