The balanced chemical equation for the complete combustion propane, c3h8 is: c3h8 + 5o2 → 3co2 + 4 h2o how many moles of h2o would be formed by the complete reaction of 0.200 moles of o2? 0.80 mol 0.160 mol 0.250 mol 1.20 mol

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false