Has to be the below money that has to do with the upper left corner plus the root
Answer:
N2(g) + O2(g) ----->2NO(g) ΔH= 181 kJ
Explanation:
The equation of the reaction according to the question should be written with the lowest coefficient. A thermochemical reaction usually includes the enthalpy of reaction as part of the reaction equation
So we have the equation of the reaction as;
N2(g) + O2(g) ----->2NO(g) ΔH= 181 kJ
The positive enthalpy shows that heat was absorbed in the reaction
Question 1
The topmost layer of the rock would be layer B I think because its the most recent layer
Question 2
The answer should be "Organism X existed for a short period of time" because the other ones dont make sense and maybe if it existed for a short period of time there would be less fossils of it in the rock.
Question 3
The answer should be C because if it is next to the fossil that would mean it existed when the fossil did.
Question 4
I think the answer is radioactive dating because radioactive dating is a technique used to date materials such as rocks or carbon.
Yes this statement is true because the concentration is two help determine whether the reaction is moving forward or backwards direction
Here it is at standard condition and delta g not is always the same because it denote that the reactant/product are at standard temperature or product as the reaction goes toward equilibrium delta g change because reaction is proceeding forward and delta g not is standard change in free energy between reactant and product. delta g is used to find gibbs free energy in nonstandard conditions while delta g naught is used to determine gibbs free chemical reaction energy under normal conditions. that's why this statement is true.
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Answer:
32 g
Explanation:
molar masses of elements such as sulfur can be found on the periodic table.
the molar mass listed on the periodic table equals 1 mole of the atom which also equals 6.02×10^23
therefore, 32g = 1 mole of sulfur = 6.02×10^23
(1 mole always equals 6.02×10^23)