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const2013 [10]
3 years ago
15

Which element has an electron configuration of [Kr]5s2

Chemistry
1 answer:
nydimaria [60]3 years ago
5 0

Element name  = <u>strontium</u>

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Why do scientists need to study seismic waves to analyze the interior of the earth and the layers of the earth?
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Geologists use these records to establish the structure of Earth's interior. The two principal types of seismic waves are P-waves (pressure; goes through liquid and solid) and S-waves (shear or secondary; goes only through solid - not through liquid).

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3 years ago
A wave is a disturbance that carries...
zimovet [89]
A wave is a disturbance that carries energy from one place to another. Matter is NOT carried with the wave! A wave can move through matter (a medium). If it must have a medium, it is called a mechanical wave.
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3 years ago
The precision of a method is being established, and the
Lemur [1.5K]

Answer:

No,  22.09%  is not a valid measurement

Explanation:

Precision has to do with how close a given set of measured values are to each other. It is quite different from accuracy. Accuracy refers to how close a given set of values is to the true value. A given set of values may be precise but not accurate and vice versa.

If we look at the values obtained;  22.09%,  22.15%, 22.18%, 22.23%, 22.25%, the value 22.09% is too far off the other values. This implies that it does not represent a valid measurement since it is not close to all the other values obtained.

7 0
3 years ago
Which element family is all 2-
Zielflug [23.3K]

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Alkaline Earth Metals

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3 years ago
The density of copper is 8.68 g/mL use the density value to determine how many moles are
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17.1 mol

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(8.68g/mL * 125 mL) = 1085 g

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