I think its 5 I have not learned this so it is my best guess
Helium, neon,nitrogen and argon
Answer:
B.) an intensive property
Explanation:
Bc it is a Characteristic Property that won't change no matter what size of sample is tested
The element that has been oxidized is Al ( Answer A)
Explanation
if the oxidation number of an element is greater in the product side than the reactant side then the element has lost the electrons . This mean that the element has been oxidized.
Al is oxidized because it move from oxidation state Zero(0) in reactant side to oxidation state 3⁺ in product side.
This implies that Al loses 3 electrons.
1635 miles/hr.
Hope this helps