How does knowing about the mole help you predict what will happen in a
reaction? Apply what you know about the mole to solve this problem: How
many grams of H 2 O will be produce in this reaction?
2H+O 2 → 2H 2 O

Can anyone help me on this /

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?