How many grams of sodium metal are required to produce 8.42 moles of hydrogen gas in the provided reaction? 2Na + 2H2O ⟶ 2 NaOH+H2

Which description best characterizes the motion of particles in a solid?

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride