If 9.7 moles of Fe2O3 are decomposed, what volume in dm3 of oxygen should be produced? (Round to the tenths place)

2 Fe2O3 -> 4 Fe + 3 O2

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive

Which is true according to the law of conservation of energy

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes? or no? this question is worth 20 points! let it be correct!