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pantera1 [17]
10 months ago
9

Which of the following is true of electronegativity?

Chemistry
1 answer:
Kay [80]10 months ago
4 0

Answer:

c) It describes the affinity an atom has for an electron.

Explanation:

C quite literally describes what electronegativity is, you can rule out most others by looking at periodic trends as attached below.

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Yes it can. i hope i helped

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3 years ago
Which of the following are pure substances? (Select all that apply.)
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Elements and compounds are both examples of pure substances. Compounds are substances that are made up of more than one type of atom. Elements are the simplest substances made up of only one type of atom. i hope that helps:)
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2H2 + O2 --> 2H2O can be classified as what type of reaction?
Sveta_85 [38]
Combustion reaction
Key: O2
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5 0
3 years ago
Read 2 more answers
Determine the overall energy change for the reaction between hydrogen and oxygen shown in Question 13. Use Figure 2.
zimovet [89]

Answer:

–500KJ

Explanation:

Data obtained from the question include the following:

Heat of reactant (Hr) = 800KJ

Heat of product (Hp) = 300KJ

Enthalphy change (ΔH) =..?

The enthalphy change is simply defined as the difference between the heat of product and the heat of reactant i.e

Enthalphy change = Heat of product – Heat of reactant

ΔH = Hp – Hr

With the above formula, we can easily calculate the enthalphy change as follow

ΔH = Hp – Hr

ΔH = 300 – 800

ΔH = –500KJ.

Therefore, the overall energy change for the reaction between hydrogen and oxygen shown in the diagram above is –500KJ

5 0
3 years ago
Calculate the number of moles of C2H6 (nC2H6) in 1.80×1023 molecules of C2H6.
dem82 [27]
1481.40 molecules of C2H6
6 0
3 years ago
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