breaking bonds in reactants and forming new bonds in products. Breaking bonds requires energy, and forming bonds releases energy.
The density of the gold is 19.3 grams/cc so each cc weighs 19.3grams. Now we can obtain the volume of gold from the given dimensions ie 4.72x8.21x3.98= 154.23 cc. So for the answer, just multiply the volume or 154.23 x 19.3= 2976.6 grams is the answer.
Answer:
1 : 2
Explanation:
From the question given, we obtained the following information:
T1 = 287°C = 287 +273 = 560K
T1 = 587°C = 587 +273 =860K
V1 = V
V2 =?
V1 /T1 = V2 /T2
V/560 = V2/860
Cross multiply
V2 x 560 = 860 x V
Divide both side by 560
V2 = (860 x V) / 560
V2 = 1.54V = 2V
The ratio of initial to final volume =
V1 : V2
= V : 2V
= 1 : 2
Basically the theory centers on the idea that an atom of iron dumped into the sea results in the conversion of 10,000 molecules of carbon dioxide to carbohydrates. John Martin's hypothesis is that the growth of phytoplankton is limited by the amount of iron dissolved in sea water. Lab experiments done by him then showed that indeed, adding a small amount of iron accelerated the growth of plankton.
