Answer:
false
Explanation
The chemical bonds were broken when creating the compound MgO.
You get 42 when you multiply 6 & 7.
Answer:
a. NH gain a proton
b. NH is a Bronsted-Lowry base because is capable of accepting a proton
Explanation:
Answer: The phase change for A and B respectively is condensation, freezing.
Explanation:
A process in which gaseous state of a substance converts into liquid state is called condensation.
For example, conversion of steam into water.
A process in which liquid state of a substance converts into solid state is called freezing.
For example, conversion of liquid water into ice.
Thus, we can conclude that the phase change for A and B respectively is condensation and freezing.
Answer: Mendeleev improve newlands periodic table because he swapped the order of some elements if that fitted their properties better.
Explanation: I hope this helps!... :)