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bija089 [108]
3 years ago
10

Which of the following elements is the most reactive? c, s,f, or as

Chemistry
2 answers:
makkiz [27]3 years ago
3 0
I would say as, Arsenic

IrinaK [193]3 years ago
3 0
Fluorine is the most reactive element because for nonmetal the reactivity increases up a group. But for metal, it increases down a group. And there's no element listed there from metals that is in the last in a column. So therefore, it's F. 
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Examine the diagram shown. Which are the correct labels for continental plates 1 and 2?
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How many grams does 1.0 liter of motor the density of motor oil is 0.80g / mL
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What volume does 0.482 mol of gas occupy at a pressure of 719 mmHg at 56 ∘C?
kozerog [31]

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7 0
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The concentration of Rn−222 in the basement of a house is 1.45 × 10−6 mol/L. Assume the air remains static and calculate the con
bonufazy [111]

<u>Answer:</u> The concentration of radon after the given time is 3.83\times 10^{-30}mol/L

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t_{1/2}=\frac{0.693}{k}

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k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}

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k = rate constant = 0.181days^{-1}

t = time taken for decay process = 3.00 days

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Putting values in above equation, we get:

0.181days^{-1}=\frac{2.303}{3.00days}\log\frac{1.45\times 10^{-6}}{[A]}

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3 years ago
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