HURRY PLEASE HELP Carbon-14 has a half-life of 5,770 years. A 25 gram sample of Carbon-14 was found. The original sample mass was hypothesized to have a mass of 100 grams.
How old was the sample based on this hypothesis?
A. 2885
B. 11,540
C. 17,310
D. 23,080

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

What does an electron configuration for an atom relate to the atoms placement on the periodic table

Fred is studying a substance that is made out of only one element. this means that