This is false because males have 1 X and 1 Y chromosome. It's females who have 2 X chromosomes. So, it's false.
Answer:
It is based on testable and replicable evidence.
Answer:
1 strong acid
2 yes they are dangerous
Explanation:
Since nearly all of it is dissociated in water, it is called a strong acid.
2 yes Concentrated strong acids can cause severe and painful burns. The pain is due in part to the formation of a protein layer, which resists further penetration of the acid
H2O became a vapor when heated because thats the only one that can go back to its normal state, which is what a physical change is.
Answer:
Just too clarify its actually
A: gas
B: solid
C: liquid