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3 years ago

NEEED HELP PLEASE IM VERY STRESSED

Chemistry

1 answer:

Arte-miy333 [17]3 years ago

5 0

Answer:

C) It moves faster and collects more data

Explanation:

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How many grams of aluminum are needed to react completely with 1.2 mol of FeO?

a_sh-v [17]

Answer:

Explanation:

all you do is the math expression

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3 years ago

You are given a solution containing a pair of enantiomers (a and b). careful measurements show that the solution contains 77% a

san4es73 [151]

The ee solution would be 55%

6 0

3 years ago

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During this chemical reaction energy is absorbed. In the chemistry lab, this would be indicated by a decrease in temperature or

Semmy [17]

Reactions like this one absorb energy because the reactants have less potential energy than the products.

<h3>What is an Endothermic reaction?</h3>

This is the type of reaction in which the reactants absorb heat energy from the surroundings to form products.

This brings about a decrease in the temperature as a result of the reactants having less potential energy than the products thereby making option B the most appropriate choice.

Read more about Endothermic reaction here brainly.com/question/6506846

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2 years ago

What are the gas laws? (Include Boyle's law, charles's law, gay lussac's law, an avogadro's law) Could someone please summarize

Rina8888 [55]

Answer:

Boyle's Law: When the pressure of a gas increases, the volume of the gas will decrease as long as the temperature and amount of gas are constant.

So basically pressure is inversely proportional to Volume, when one increases, the other decreases, vice versa.

Equation: $P_{1} V_{1} = P_{2} V_{2}$

Charles Law: When the temperature of a gas increases, the volume of a gas will also increase if the pressure and amount of gas are constant.

So basically Temperature and volume are directly proportional.

Equation: $\frac{V_{1}}{T_{1}} = \frac{V_{2} }{T_{2} }$

Gay Lussac's Law: When the temperature of a gas increases, the pressure of a gas also increases when volume and the amount of gas remain constant.

Basically, Temperature and Pressure are directly proportional.

Equation: $\frac{P_{1}}{T_{1}} = \frac{P_{2} }{T_{2} }$

Avogadro's Law: The most intuitive gas law. When you increase the amount of gas, the volume will also increase.

Meaning the moles (amount of gas) is directly proportional to volume.

Equation: $\frac{V_{1} }{n_{1} } = \frac{V_{2} }{n_{2} }$ (n stands for moles)

There is a combined gas law and ideal gas law but those are just the gas laws mentioned above but combined together. These should be everything.

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2 years ago

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Calculate the internal energy (in Joules) of a system that loses 134.8 J that is compressed with a pressure of 5.73 atm from 8.5

Nataly_w [17]

The change in the internal energy of the system is -4511.8 J.

<h3>What is the change in the internal energy?</h3>

We know that according to the first law of thermodynamics, energy can neither be created nor destroyed but can be transformed from one form to the other.

Now we know that;

ΔE = q + w

ΔE = Change in internal energy

q = heat absorbed or evolved

w = work done

Now we have;

q = - 134.8 J (The system losses heat)

w = PdV

w = 5.73 (1.00 - 8.540)

w = -43.2 Latm or -4377 J

Then we have;

ΔE = - 134.8 J + (-4377 J)

ΔE = -4511.8 J

Learn more about internal energy:brainly.com/question/11278589

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5 0

1 year ago