URGENT!! Which substance is reduced in this following reaction? (which element goes through reduction).
Explain! (define what's going on, etc)

2Mg + O2 --> 2MgO

How does decreasing the gas volume affect the pressure of a gas?

What overall charge must all compounds have

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.