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1 year ago

7

1s22s²2p63s23p64s²3d104p5 Which element is this?

1 answer:

bearhunter [10]1 year ago

3 0

Answer: bromine

Explanation:

There are a total of 2+2+6+2+6+2+10+5=35 electrons, meaning there are 35 protons. The element with atomic number 35 is <u>bromine</u>

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Which describes the current model of the atom? (2 points)

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3 years ago

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U-238 has _____ protons and 146 neutrons

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U-238
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2 years ago

Ben put 100 ml of water and 100 ml of oil in a beaker then he stirred the mixture. Which is the best way to quickly separate the

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3 years ago

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Answer:

The gas will occupy a volume of 1.702 liters.

Explanation:

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Where:

$P$ - Pressure, measured in kilopascals.

$V$ - Volume, measured in liters.

$n$ - Molar quantity, measured in moles.

$T$ - Temperature, measured in Kelvin.

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$\frac{P_{1}\cdot V_{1}}{T_{1}} = \frac{P_{2}\cdot V_{2}}{T_{2}}$ (2)

Where:

$P_{1}$ , $P_{2}$ - Initial and final pressure, measured in kilopascals.

$V_{1}$ , $V_{2}$ - Initial and final volume, measured in liters.

$T_{1}$ , $T_{2}$ - Initial and final temperature, measured in Kelvin.

If we know that $P_{1} = 121\,kPa$ , $P_{2} = 202\,kPa$ , $V_{1} = 2.7\,L$ , $T_{1} = 288\,K$ and $T_{2} = 303\,K$ , the final volume of the gas is:

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3 years ago

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Answer:

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Explanation:

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