If gravity is always pushing down on you, what prevents you from sinking down into the ground?

In which phase(s) do the molecules take the shape of the container?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions