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Alexeev081 [22]
3 years ago
7

What two motions combine to produce orbit?

Chemistry
1 answer:
Alex73 [517]3 years ago
6 0
<span>Forward & falling. Hope this helps!</span>
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Ionization energy and electronegativity show similar trends in the periodic table. Describe these trends. What is the significan
marin [14]
Electronegativity measures how much an atom likes to pull electrons away from another one. Ionization energy measures how much an atom doesn't want to lose electrons. As an atom that wants to gain electrons will clearly not want to lose electrons, these trends are basically identical.
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The public is not yet able to purchase cars powered by hydrogen fuel cells because engineers have to determine how the cars perf
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It’s B just did it

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What evidence in Side View lets you know that upwelling is happening in these locations?
mojhsa [17]

Answer:

Image result for What evidence in Side View lets you know that upwelling is happening in these locations?

Winds blowing across the ocean surface often push water away from an area. When this occurs, water rises up from beneath the surface to replace the diverging surface water. This process is known as upwelling.

Explanation:

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2 years ago
An environmental scientist developed a new analytical method for the determination of cadmium (cd^2+) in mussels. To validate th
Anettt [7]

Answer:

The method is accurate  in the calculation of the Cu^+2

Explanation:

As a first step we have to calculate the <u>average concentration </u>of Cu^+2 find it by the method.

\frac{0.782+0.762+0.825+0.838+0.761 }{5} =0.79 ppm

Then we have to find the<u> standard deviation:</u>

s=\sqrt{\frac{1}{N-1}\sum_{i=1}^N(x_i-\bar{x})^2}=0.0359

For the confidence interval we have to use the formula:

μ=Average±\frac{t*s}{\sqrt{n} }

Where:

t=t student constant with 95 % of confidence and 5 data=2.78

μ= 0.79  ±  \frac{2.78*0.0359}{\sqrt{5} }

upper limit:  0.84

lower limit: 0.75

If we compare the limits of the value obtanied by the method (Figure 1 Red line) with the reference material (Figure 1 blue line) we can see that the values obtained by the method are within the values suggested by the reference material. So, it's method is accurate.

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3 years ago
What are some good puns about elements in chemistry?.
anastassius [24]

Answer:

When all the elements die, we Barium!

Ugh, I need to zinc of new Chemistry puns…

Oxygen and Magnesium are going out? O Mg!

Don't trust atoms! They make up everything!

5 0
2 years ago
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