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Ksenya-84 [330]
3 years ago
6

Arrange the following set of atoms in order of decreasing atomic size: Sn, I, Sr

Chemistry
1 answer:
vampirchik [111]3 years ago
3 0
Atomic size
Sr>Sn>I

A)
B)
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What happens acoss the period of the periodic table
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Atomic size gradually decreases from left to right across a period of elements.

Explanation:

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The amount of snowfall depends on the right combination of temperatures and moisture in the air.

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Josh drives her scooter 7 km north. she stops for lunch and then drives 5 km east. what distance does she cover? what was her di
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Explanation:

Find the motion diagram attached for the illustration:

Distance is the length of path traveled from the start to the finish. In measuring distance, we wall through the path from start to the finishing point. Distance is a scalar magnitude that has magnitude but no direction.

Displacement is distance that is taken between the start and finishing point. It is a vector quantity that has magnitude and measures direction.

To find the distance;

Distance = 5km + 7km = 12km

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 Using pythagoras theorem;

   Displacement = √7² + 5² = 8.6km

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   bearing = arcSin 0.5814 = 035.6°

Displacement is 8.6km in a direction 035.6°

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6 0
3 years ago
A gas occupies a volume of 131.0-mL at 165.2-kPa. What volume will the gas occupy at 170.8-kPa if the temperature remains the sa
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The relationship between the pressure and the volume of the gas at a constant temperature is given by Boyle's law. The volume, of the gas at  170.8 kPa is 126.70 mL.

<h3>What is Boyle's law?</h3>

Boyle's law states the inverse relationship between the pressure and the volume of the gas. The formula for the law can be given by:

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Given,

Initial pressure = 165.2 kPa

Initial volume = 131.0 mL

Final pressure = 170.8 kPa

The final volume is calculated as:

165.2 * 131.0 = 170.8 * V

V = 126.70 mL

Therefore, the final volume of the gas is 126.70 mL.

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6 0
2 years ago
Use your periodic table of elements. Take any element from the second column, except for beryllium and calcium, and answer the f
Alja [10]

Answer:

Radium (Ra)

Metal

Alkaline Earth Metal

Protons & Electrons: 88

Neutrons: 138

Explanation:

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2 years ago
Read 2 more answers
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