A mass of 63.658 g of carbon contains how many miles

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Answer 1

Answer:

I won't give you the answer, but I will give you the process and then you can plug in the numbers. I'm guessing you are looking for how many MOLES are in 63.658g of Carbon. What you need to do to solve this is to use the molar mass of Carbon plugged into the dimensional analysis process. That might sound confusing, so let me give you a sample question.

Now, you plug in the numbers in your problem into that sample process. And if you don't know where to find the molar mass, it's simple.

The Molar mass of an element is the same as the atomic mass. So Hydrogen has the atomic mass of 1.01u, and it also has the molar mass of 1.01 grams per mole.

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Is friction better on a hard or smooth surface?

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Answer:

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Explanation:

Answer:

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them.

Explanation:

How many calories are absorbed by a sample water with a mass of 500 grams as it changes from 50 degrees C to 65 degrees C?

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H = mCpT

H = (500 grams water)( 4.18 J/ g - degrees C) (65 - 50)

H =31,350 J

since 1 cal = 4184 joules

31,350 Joules (1 calorie/ 4184 joules) = 7.49 calories

Can you…Balance a chemical equation using the relationships identified?

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Answer:

A balanced chemical equation not only describes some of the chemical properties of substances—by showing us what substances react with what other substances to make what products—but also shows numerical relationships between the reactants and the products.

A balanced chemical equation not only describes some of the chemical properties of substance by showing us what substance react with what other substance

Which organic compound is unsaturated?(1) 2-methylbutane (3) 2-hexanol
(2) 2-chloropropane (4) 2-pentene

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The answer is (4) 2-pentene. The pentene belongs to olefin and has double bonds between the carbon atoms. And the other three belongs to alkane which don't have double bonds. So the pentene is unsaturated.

Technician A says that a leaking head gasket can be tested for by using a chemical tester. Technician B says that a leaking head gasket can be found using an exhaust gas analyzer. Who is correct?

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Answer: Both technicians are correct

Explanation: A chemical tester and exhaust gas analyzer are two important ways to check for gasket leakage

A student is trying to classify an unidentified, solid gray material as a metal or a non metal. which question will best help the student classify the material?F. Is the material malleable or ductile?
G. Does the material feel hard to the touch?
H. Will the material float in water?
J. Does the material feel rough or smooth?

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Answer:

i think the answer is f as metals are malleable and ductile

Answer:

Explanation: Most metals carry the trait that they are malleable and ductile.

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The atoms of Group 7A elements _____ electrons when they form ions.A. share B. gain C. lose D. cannot be determined

Which of the following is equal to 4 kilograms? A. 4,000 mgB. 4,000 gC. 40 gD. 4,000 cg