637
65 times 9.8
Mass times gravitational strength equals weight
Elements that have six electrons in the highest-energy p sublevel in their ground state are called the noble gases or inert gases. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).
Answer:
C
Explanation:
The non metal in HCl is Chlorine and the name of the acid is Hydrochloric acid.
H = hydro
Cl = chloric
So I imagine this new acid, yet to be discovered even by the crew of the Star Ship enterprise, would be
HydroBlobbic acid
I await news from Spock on how things are going on the discovery of such a thing. So far he has not said anything about it.
Answer:
C. solid iodine subliming into a gas
Explanation:
A physical change is a change that is reversible and can be reversed back into the original product. The atoms and molecules undergoes some rearrangement in the physical change. The process of change in the state of matters are placed under physical change. Solid iodine sublimes into purple gas on heating. The gas is then changed back to iodine crystals after being cooled. Hence, this is an example of a physical change.
Answer:
As we go down the group, the atom gets bigger. The bigger the atom, the further away the last electron. Therefore, the attraction between the nucleus and the last electron gets weaker. This makes it easier for the atom to give up the electron which increases its reactivity.
Explanation:
