How many joules are absorbed in a process that absorbs 0.5720 kcal?

Answers

Answer 1

Answer: Both joules and kilocalories are units of measurement for energy. This means that the solution to this problem can be solved just by converting the units using the appropriate conversion factors. One kilocalorie is equal to 4,184 joules. Multiply 0.5720 kcal by 4,184 to get the value in joules. This gives 2,393.25 joules.

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If a substance goes from the gas phase to the liquid phase, was it heated or cooled

Answers

when a substance goes from 1 state of matter to a another state of matter, the process is a change of state. What i found out is that it can be heated, whenever the substance goes to another phase i mostly heard, and reasearched that it goes to heated.

The "skin" of the statue of liberty is made of iron. true false

Answers

False. It's copper.

FALSE. IT IS MADE OF COPPER THAT IS WHY IT HAS A GREEN TENT.

A 25.5 liter balloon holding 3.5 moles of carbon dioxide leaks. If we are able to determine that 1.9 moles of carbon dioxide escaped before the container could be sealed, what is the new volume of the container?

Answers

Answer: The new volume of the container is 13.8 L

Explanation:

To calculate the new volume of the system, we use the equation given by Avogadro's Law. This law states that volume of the gas is directly proportional to the number of moles of the gas at constant pressure.

Mathematically,

$(V_1)/(n_1)=(V_2)/(n_2)$

where,

$V_1\text{ and }n_1$ are the initial volume and moles of the gas.

$V_2\text{ and }n_2$ are the final volume and moles of the gas.

We are given:

$V_1=25.5L\nn_1=3.5\nV_2=?\nn_2=1.9$

Putting values in above equation, we get:

$(25.5)/(3.5)=(V_2)/(1.9)\n\nV_2=13.8L$

Thus the new volume of the container is 13.8 L

A hexagon can be used to represent the structure of cyclohexane. What does each side of the hexagon represent?

Answers

Answer:

Single bond between two carbon atoms.

Explanation:

Let us look at the structure of a hexagon for representation of cyclohexane.

Cyclohexane has six carbons and thus we can place each carbon at the vertices of the hexagon. Now the bond joining each adjacent carbon atoms will be shown by the each side of the hexagon.

The hydrogen atoms are not shown in the structure.

Answer:

Single bond between two carbon atoms.

Explanation:

Powdered sulfur and iron filings are mixed together. What physical property could you use to separate them?

Answers

I could use a magnet. The magnet will pull the iron filings and the mixture would be easily separated.

Use a magnet. The magnet will pull the iron out from the sulfur. Then the mixture will be separated!

If enough heat was REMOVED from B, it would change into ____________.

Answers

If enough heat was REMOVED from B, it would change into A.

An exothermic reaction is a reaction that releases energy, this energy is usually in the form of heat. An endothermic reaction is a reaction that absorbs energy to take place.

To bring molecules together requires the release of energy, that is, an exothermic reaction.

Thus, if heat were removed from B, it would turn into A, with molecules closer together, in the solid state.

Learn more about exothermic reaction in: brainly.com/question/14969584

If enough heat was removed from B(liquid) it would become a solid i think.

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