Answer:224
Explanation:
We should answer it with Stoichiometry
We say: 20 g H2× (1 mol/ 2g)× ( 22.4 lit/ 1 mol) = 224
Means: we have 20 grams and every 2g H2, equals to 1 mol of it and every 1 mol of H2, equals to 22.4 lit( because of STP)
hope you got this:)
All atoms of the same element have the same
number of protons. Every atom also has a nucleus.
A persons weight changes as he travels from earth to space but his mass remains the same
Answer:
an alloy is a mixture of elements that has metallic properties
Explanation:
Answer:
The substance is a mixture because it left a white powder in the beaker when boiled.
Explanation:
