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Goryan [66]
4 years ago
5

The bond that forms between two nonmetal elements will be

Chemistry
1 answer:
Troyanec [42]4 years ago
8 0
It is a covalent bond
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3 years ago
A first-order reaction has a half-life of 29.8 s . How long does it take for the concentration of the reactant in the reaction t
lutik1710 [3]

Answer : The time taken for the concentration of the reactant in the reaction to fall to one-fourth of its initial value is, 12.4 seconds.

Explanation :

Half-life = 29.8 s

First we have to calculate the rate constant, we use the formula :

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

k=\frac{0.693}{29.8s}

k=0.0232s^{-1}

Now we have to calculate the time passed.

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 0.0232s^{-1}

t = time passed by the sample  = ?

a = let initial amount of the reactant  = x M

a - x = amount left after decay process = x-\frac{1}{4}\times (x)=\frac{3}{4}\times (X)=\frac{3x}{4}M

Now put all the given values in above equation, we get

t=\frac{2.303}{0.0232s^{-1}}\log\frac{x}{(\frac{3x}{4})}

t=12.4s

Therefore, the time taken for the concentration of the reactant in the reaction to fall to one-fourth of its initial value is, 12.4 seconds.

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The electronegativity of the element affects all of the following except a- type of bond it forms with other elements b- the boi
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The electronegativity of the element affects the ability of its compounds to dissolve in different solvents.

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