For the reaction 2S(s) + 302(g) → 2503(g)
how many moles of SO3 can be produced from 6.8 g O2 and excess S?
a. 0.28 mol SO3
b. 4.5 mol SO3
c. 0.14 mol SO3
d. 0.32 mol SO3
e. none of these

When balancing a chemical equation:

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.