Alpha and Beta particles can be stopped by our skin. Gamma particles cannot be stopped by our skin.
Answer:
a star is like the sun a burning ball of gas that gives light to the outer space.
Explanation:
Answer:
yh
Explanation:
welcome.This place is for learning
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:)
