sam was given the following equation to balance: H2O->H2+O2. she balanced it as follows: 2H2O->H2+O2. what did she do wrong? what is the correct way to balance the equation?

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

Is this correct if not can u correct me

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.