Answer:
D
Explanation:
Density is d=m/v
We have mass, it's 540
The volume is length*width*height
So it's 5*6*4=120 cm^3
540/120=4.5 g/cm^3
It's cm^3 because volume is in cubic centimeters.
Answer:
F
Explanation:
because F had the bigger affinity than cl
Answer:
A cation with a 2+ charge will make a stronger ionic bond than a cation with a 1+ charge. A larger ion makes a weaker ionic bond because of the greater distance between its electrons and the nucleus of the oppositely charged ion.
Answer:
it's a chemical change
Explanation:
When two different chemical substances are mixed they are no longer the same and can not be changed back so therefore it's a Chemical reaction.
this needs more information, did it come with an explination or picture?