A111.6 gram sample of iron (mw=55.8) was heated from 0 degrees c to 20 degrees c. it absorbed 1004 joules of energy. what is the molar heat capacity of iron?

Compare and contrast physical changes with chemical changes.

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?