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poizon [28]
3 years ago
7

Oxygen's electronegativity value is between those of sulfur and fluorine. Which statement correctly describes the relationship b

etween the three values?
A) The value for oxygen is less than that of sulfur because oxygen is larger, but greater than that of fluorine because oxygen has a greater effective nuclear charge.
B) The value for oxygen is less than that of sulfur because oxygen has less protons but greater than that of fluorine because oxygen has less valence electrons.
Eliminate
C) The value for oxygen is greater than that of sulfur because oxygen has less electrons, but less than that of fluorine because oxygen is smaller.
D) The value for oxygen is greater than that of sulfur because oxygen is smaller, but less than that of fluorine because oxygen has a smaller effective nuclear charge.
Chemistry
1 answer:
Misha Larkins [42]3 years ago
7 0

Answer: The answer is D

Explanation:

Usatestprep

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What element has a half-life = to 64
Virty [35]
The best answer is the isotope of strontium which is strontium-85. It has a half-life of about 64 days. The metal strontioum has four stable, naturally occurring isotopes which includes 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%).
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3 years ago
A 500 gram piece of metal had a volume of 2.75cm3. What is it’s density
beks73 [17]

Answer:

181.82 g/cm3

Explanation:

density is mass / volume so it is 500 / 2.75=181.82 g/cm3

8 0
3 years ago
Please help ASAP please and thanks!! I'll also mark you!
skelet666 [1.2K]
Substitution Reactions are those reactions in which one nucleophile replaces another nucleophile present on a substrate. These reactions can take place via two different mechanism i.e SN¹ or SN². In SN¹ substitution reactions the leaving group leaves first forming a carbocation and nucleophile attacks carbocation in the second step. While in SN² reactions the addition of Nucleophile and leaving of leaving group take place simultaneously.
 
Example:
                        OH⁻  +  CH₃-Br     →     CH₃-OH  +  Br⁻

In above reaction,

                   OH⁻  = Incoming Nucleophile

                   CH₃-Br  =  Substrate

                   CH₃-OH  =  Product

                   Br⁻  =  Leaving group

Organic reactions are typically slower than ionic reactions because in organic compounds the covalent bonds are first broken, this breaking of bonds is a slower step, while, in ionic compounds no bond breakage is required as it consists of ions, so only bond formation takes place which is a quicker and fast step.
7 0
3 years ago
What is the condensed structural formula of the product of the reaction of 2,7-dimethyl-4-octene with hydrogen and a metal catal
gavmur [86]
  The  condensed  structural  formula  of the  product  of the  reaction of 2,7-dimethyl-4-octene  with hydrogen   and metal  catalyst.

 Ch3 CH(CH3) CH2 CH2 CH2 CH2 CH(CH3) CH3

Equation  is  as follows

 CH3 CH(CH3) CH2  C=C CH2 CH(CH3)  CH3  +  H2
→

CH3 CH(CH3)CH2 CH2 CH2 CH2 CH(CH3) CH3

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6 0
3 years ago
34g aluminum are combined with 39g chlorine gas which is the limiting reactant
vampirchik [111]

The limiting reactant is chlorine (Cl2).

<u>Explanation</u>:

Limiting reactant is the amount of product formed which gets limited by the reagent without continuing it.

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Number of moles Al present = 34 g Al x 1 mole Al / 26.98 g

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Number of moles Cl2 present = 39 g Cl2 x 1 mole Cl2 / 35.45 g

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Dividing each reactant by it's coefficient in the balanced equation obtains:

1.260 moles Al / 2 = 0.63 g moles of Al

1.11 moles Cl2 / 3 = 0.36 g moles of Cl2

The reactant which produces a lesser amount of product is called as limiting reactant.

Here the Limiting reactant is Cl2.

6 0
3 years ago
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