Answer:
The Answer is 2-methylpentane
Or the third one down.
Explanation:
Answer:
155 kJ of energy will be released.
Explanation:
The 
(
in some textbooks) here stands for standard enthalpy change per mole reaction. To find the amount of energy released in this reaction, start by finding the number of moles of this reaction that will take place.
How many <em>moles</em> of atoms in 4.72 grams of carbon?
Relative atomic mass data from a modern periodic table:
.
The coefficient of carbon in the equation is one. In other words, each mole of the reaction will consume one mole of carbon. Oxygen is in excess. As a result, 
of carbon will support of the reaction.
How much energy will be released?
The 
value here is negative. But don't panic. is the same as the chemical potential energy of the reactants minus the products in one mole of the reaction. 
means that the chemical potential energy drops by 
during each mole of the reaction (with the coefficients as-is.) Those energy difference will be released as heat. In other words, one mole of the reaction will release 
of energy.
The 4.72 grams of carbon will support of this reaction. How much heat will that of reaction release?
.
As a side note, the mass of carbon 4.72 grams is the least significant data in this question. There are three significant figures in this value. As a result, keep more than three significant figures in calculations but round the final result to three significant figures.
Answer: Groundwater and surface water are connected. When groundwater is overused, the lakes, streams, and rivers connected to groundwater can also have their supply diminished. Land subsidence occurs when there is a loss of support below ground. This is most often caused by human activities, mainly from the overuse of groundwater, when the soil collapses, compacts, and drops.
Hope it Helps. :)
Increases as well. More heat means more energy is being supplied.
Bro you really expect us to read that for just 5 points and we all be to lazy to read that
