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kirill115 [55]
3 years ago
10

Why do group 7 elements have higher melting and boiling points going down?

Chemistry
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

this is because the van der waals forces or also known as induced dipole-dipole interactions increase because more electrons are present within an atom as you go down

Explanation:

-

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xenn [34]
It is A)The smallest unit of Ne 

5 0
3 years ago
Consider the first-order reaction described by the equation At a certain temperature, the rate constant for this reaction is 5.8
zubka84 [21]

<u>Answer:</u> The half life of the reaction is 1190.7 seconds

<u>Explanation:</u>

The equation used to calculate rate constant from given half life for first order kinetics:

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

where,

k = rate constant of the reaction = 5.82\times 10^{-4}s^{-1}

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Putting values in above equation, we get:

t_{1/2}=\frac{0.693}{5.82\times 10^{-4}s^{-1}}=1190.7s

Hence, the half life of the reaction is 1190.7 seconds

8 0
3 years ago
Hello! Id like if someone could tell me this answer, thank you so much!
DaniilM [7]

Answer:

Option D. ZnCl₂ and H₂

Explanation:

From the question given above, the following equation was obtained:

2HCl + Zn —> ZnCl₂ + H₂

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Reactants —> Products

Now, considering the equation from the question i.e

2HCl + Zn —> ZnCl₂ + H₂

The products are ZnCl₂ and H₂ because from our discussion above, we said that products are only located on the right side of chemical equation.

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4 0
3 years ago
The number 4012 has how many significant figures?​
grandymaker [24]

Answer:

8 figures.

Explanation:

3 0
3 years ago
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The statement which describes how NO2- reacts in this equilibrium:
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6 0
3 years ago
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