Hydrogen and helium because they only have one electron shell and it only holds up to two electrons in it.
Electrons are negative, protons are positive, and neutrons have no charge
D. The average kinetic energy increases, and the particles collide more frequently.
Explanation:
When the temperature of a gas is increased, the average kinetic energy increases and the particles collide more frequently with one another and the walls of the container.
- The temperature of a gas is a measure of the average kinetic energy of the molecules.
- When temperature increases, the frequency of ordinary and effective collision increases per unit time.
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Answer:
A(g) + B(g) → 3C(g).
Explanation:
As the no. of gaseous molecules increases in the product side than the reactants, disordering occurs and ΔSrxn be more positive.
as in: A(g) + B(g) → 3C(g).
the no. of gaseous molecules in the reactants side (2) and be (3) in the products side, disorder increases.
While, as the no. of gaseous molecules decreases in the product side than the reactants, ordering occurs and ΔSrxn be more negative.
as in:
2A(g) + B(g) → C(g)
,
the no. of gaseous molecules in the reactants side (3) and be (1) in the products side, ordering increases.
2A(g) + 3B(g) → 4C(g)
,
the no. of gaseous molecules in the reactants side (5) and be (4) in the products side, ordering increases.
2A(g) + B(s) → 3C(g).
the no. of gaseous molecules in the reactants side (3) and be (3) in the products side, ordering is the same.