Answer:
D They have the same properties.
Explanation:
The same no. of isotopes doesnot describes because isotopes have same symbol but didderent atomic mass.
it would be A. atom..............................................
The particles of the igloo are very compact and vibrating slowly because it is a solid at a colder temperature meaning it has less kinetic energy
Permafrost soil (gelisol) is b) fragile.
Answer:
No
Explanation:
You can not have a reaction that produces "no mass". This breaks the law of conservation of mass. When gasses are produced, they will have a specific amount of mass associated with them which means they will have a weight. They will have to be accounted for