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vichka [17]
2 years ago
10

Which element would you expect to be more reactive: phosphorus (P) or fluorine (F)

Chemistry
2 answers:
goblinko [34]2 years ago
6 0

Answer:

(F)

Explanation:

Studentka2010 [4]2 years ago
4 0

Answer:

Fluorine

Explanation:

Fluorine is the most electronegative element because it has 5 electrons in it's 2P shell.

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Which of the following is not a mixture?
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The reaction described in Part A required 3.54 L of magnesium chloride. What is the concentration of this magnesium chloride sol
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How many liters of oxygen gas, at standard temperature and pressure, will react with 35.4 grams of calcium metal? Show all of th
Margaret [11]
Answer: 19.8 l


Explanation:

1) Chemical equation:

2Ca + O₂ → 2CaO


2) Mole ratios: 2 mol Ca : 1 mol O₂ : 2 mol CaO

3) Convert 35.4 g of Ca to moles:

n = mass in grams / molar mass = 35.4 g / 40.1 g/mol = 0.883 mol

4) Volume proportion: 1 mol of gas at STP = 22.4 l


1 mol at STP              0.883 mol at STP

--------------------- = ------------------------------

22.4 l                                      x

⇒ x = 0.883 mol × 22.4 l / 1 mol = 19.8 l ← answer
5 0
2 years ago
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