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Troyanec [42]
3 years ago
10

An atom of tin has an atomic number of 50 and a mass number of 119. How many protons, electrons, and neutrons are found in one n

eutral atom of tin?
Chemistry
1 answer:
jeka943 years ago
7 0

Answer:

50

Explanation:

atomic number is equivalent to it's protons, electrons and neutrons in a neutral atom

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If the ionization constant of water, kw, at 40°c is 2.92 × 10-14, then what is the hydronium ion concentration and ph for an aci
charle [14.2K]

Answer is: the hydronium ion concentratio is 1.71×10⁻⁷ mol/dm³ and pH<6.76.

The Kw (the ionization constant of water) at 40°C is 2.94×10⁻¹⁴ mol²/dm⁶ or 2.94×10⁻¹⁴ M².

Kw = [H₃O⁺] · [OH⁻].

[H₃O⁺] = [OH⁻] = x.

Kw = x².

x = √Kw.

x = √2.94×10⁻¹⁴ M².

x = [H₃O⁺] = 1.71×10⁻⁷ M; concentration of hydronium ion.

pH = -log[H₃O⁺].

pH = -log(1.71×10⁻⁷ M).

pH = 6.76.

pH (potential of hydrogen) is a numeric scale used to specify the acidity or basicity an aqueous solution.

5 0
2 years ago
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An ______ cannot be broken down into any other substance
QveST [7]

Answer:

an atom cannot be broken down

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2 years ago
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What is the speed of a car that has traveled 100 miles in 20 hours?<br> |
77julia77 [94]

Answer:

5 mph

Explanation:

100 miles, 20 hours (divide by 2)

50 miles,    10 hours (divide by 2)

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divide both sides by 5

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3 0
3 years ago
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what happen when carbon dioxide is passed through water for short time and for long time?explain with chemical reaction.​
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Answer:

Expert Verified

Explanation:

For short duration: ... When excess of carbon dioxide gas is passed through lime water then the white precipitate calcium carbonate formed first dissolves due to the formation of a soluble salt calcium hydrogen carbonate (Ca(HCO3)2, and the Solution becomes clear again

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2 years ago
At which position is the northern hemisphere experiencing winter?
andrezito [222]

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Point A

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The Northern Hemisphere is furthest away from the sun in position A. Therefore the sunlight takes longer to reach the Earth which results in the Northern Hemisphere experiencing winter.

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