Determine the mole ratio between oxygen and water for the following equation: 2 H2 + O2 - 2 H2O
A. 1:2
B. 1:1
C. 2:2
D. 2:1

How are elements arranged in a periodic table

Which characteristics can be used to differentiate star systems? check all that apply.

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates