I would say Na. Oxygen has 2 valence electrons and when reacting with other molecules, the ones with the fullest or emptiest shells will react the least. Both H2 and Na are in the Alkali Metals in the first row, but since H2 has 2 molecules, it would use more oxygen than Ana
Answer:
The slope of the line is 
.
Explanation:
The slope of the line (
) is the change in dependent variable (
) divided by the change in independent variable (
):
(1)
If we know that 
and 
, then the slope of the line is:
The slope of the line is .
Answer:
It's A
Explanation:
Liquid can heat things and so can steam.
Answer:
Explanation:
exothermic reactions involve release of heat whereas endothermic reaction involve absorption of heat.
It has 92 protons, 92 electrons, and 238 — 92 : 146 neutrons.
