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Mariana [72]
3 years ago
14

What SI Unit would best be used to express the height of your classroom ceiling?

Chemistry
1 answer:
ivolga24 [154]3 years ago
3 0

SI unit of length - meters
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Explain why pentane has a higher boiling point than butane
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Answer: Larger molecules have stronger London forces.

Explanation:

Pentane therefore has a stronger force than butane.

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3 years ago
Bonds between metals and nonmetals tend to be ionic, but bonds between nonmetal atoms tend to be covalent.
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O i get it it does not stik on metal eater way
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A laboratory instructor gives a sample of amino acid powder to each of four students, i, ii, iii, and iv, and they weigh the sam
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Let us differentiate accuracy from precision. Accuracy is the nearness of the measured value to the true or exact value. On the other hand, precision is the nearness of the measured values between each other. So, for precision, select the student in which the measured values are very near to each other. That would be Student III. Now, for accuracy, let's find the average for each student.

Student I: (<span>8.72g+8.74g+8.70g)/3 = 8.72 g
Student II: (</span><span>8.56g+8.77g+8.83g)/3 = 8.72 g
Student III: (</span><span>8.50g+8.48g+8.51g)/3 = 8.50 g
Student IV: (</span><span>8.41g+8.72g+8.55g)/3 = 8.56 g

From the given results, the accurate one would be Students I and II. So, we make a compromise. Even though Student III is precise, it is not accurate. If you compare between Students I and II, the more precise data would be Student I. Therefore, the answer is Student I.</span>
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3 years ago
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Balance the following Equation Show your work.
7nadin3 [17]

Answer:

1) alr balanced

2) 2 2 1

3) 2 1 1 2

4) 2 3 2

5) 2 1 2 1

6) 1 6 2 3

7) 2 2 1

8) 1 2 1 2

9) 2 5 4 6

10) 3 1 2

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In this model of a molecule of ammonia, NH3, how many covalent bonds are represented?
Verdich [7]
I think the answer is three but i can't be sure.
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