Food is shipped thousands of miles throughout our country using various types of transportation such as trucks, planes, and boats. Food availability would be most affected by a shortage in which of the following energy sources? Coal Natural gas Petroleum Water power

Answers

Answer 1

Answer: The correct answer for this would be the third option: PETROLEUM. So when food is shipped thousands of miles throughout our country using various types of transportation such as trucks, planes, and boats, food availability would be most affected by a shortage of PETROLEUM. Petroleum is the energy that is used to operate trucks, planes and boats. Hope this answers the question.

Answer 2

Answer:

Answer: Petroleum

Explanation:

Petroleum is a fossil fuel. It is also called as crude oil. It is a yellowish black liquid that can be found beneath the earth crust. It is a highly combustible fuel and generates lot of heat energy necessary for running the vehicle. It is the most commonly used fuel for shipping, and road transportation of goods and services. It helps the vehicles to run for long and covering the large distance.

The food availability would be affected by the shortage in absence of petroleum.

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An ice cube is dropped into boiling water. How will heat flow between the water and the ice cube?

Answers

On a microscopic (molecular) level, heat flows from the ice to the boiling water
at a minuscule rate, and from the water to the ice at a humongous rate.

Heat transfers from hot body to cold body. So when ice is dropped in water , the water at higher temperature will lose heat energy and is gained by the ice at less temperature. When the Net heat lost equals to Net heat gained i.e.,When both the bodies attain themal equilibrium, the flow of heat energy stops and both attain equal temperatures.

A pure substance that can't be broken down into simpler substances by chemical or physical means.A. chemical
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Answers

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Answers

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Complete the following Empirical Formula & Molecular Formula problem:1.) A compound containing 63.15% C, 5.30% H, and 31.55% O. (Assume 100 g sample)

Answers

63.15% C ; 5.30% H; 31.55% O

1) Assume 100 g sample
63.15% C * 100 g = 63.15g
5.30% H * 100 g = 5.30g
31.55% O * 100g = 31.55g

2) Convert mass to moles using their atomic weights

63.15 g * 1 mol C / 12.0107 g C = 5.2870 mol C
5.30 g * 1mol H / 1.0079 g H = 5.2585 mol H
31.55 g * 1mol O / 15.9994 O = 1.9719 mol O

3) Divide each quantity by the smallest number of moles

5.2870 mol C / 1.9719 mol = 2.6812 C = 2 C
5.2584 mol H / 1.9719 mol = 2.6667 H = 2 H
1.9719 mol O / 1.9719 mol = 1.000 O = 1 O

Empirical Formula is C₂H₂O

If the problem is silent, the molecular weight is equivalent to the empirical weight.
To get the molecular formula, divide the molecular weight by the empirical weight to get the multiple.

Molecular Weight is not mentioned thus it is equivalent to Empirical Weight which is:

Atom Number in Molecule Atomic Weight Total Mass
C 2 12.0107 24.0214
H 2 1.0079 2.0158
O 1 15.9994 15.9994
Total weight is 42.0366

Molecular weight / Empirical Weight = Multiple to be multiplied to the Empirical Formula
42.0366 / 42.0366 = 1

Molecular Formula isC₂H₂O

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Answers

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