A 2.65 g sample of a substance suspected of being pure gold is warmed to 71.8 ∘C and submerged into 16.0 g of water initially at 24.4 ∘C. The final temperature of the mixture is 27.0 ∘. what is the specific heat capacity of the unknown substance?

Theoretical temperature at which molecules stop moving and no more heat can be removed from the object. kelvin: absolute zero degrees. none of the above.

The answer is d- principle of faunal succession.

So the main goal for the elements is stability which is a complete/full valence shell and typically the magic number for a stable element is 8 valence electron but not always. so elements to the left of the periodic table tend to be way less stable then those on the right, so the elements on the left are much more reactive.