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Vera_Pavlovna [14]
3 years ago
15

PLEASE HELP I will give you a brainliest

Chemistry
2 answers:
Shalnov [3]3 years ago
3 0
It’s the red answer, as temperature rises, so does motion
VMariaS [17]3 years ago
3 0
It’s red hope it was right
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HELP MEEEEE (100 points)
Semmy [17]

Answer: b: C12H22O11

Explanation: have a good day!

4 0
3 years ago
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What volume of a 0.100 M AgNO3 solution is required to completely react with the CaCl2 in 3.00 L of a 0.100 M CaCl2 solution? Th
Step2247 [10]
The balanced chemical equation for the reaction is:

2AgNO3 + CaCl2 --> 2AgCl + Ca(NO3)2

Moles of CaCl2 reacted = conc * vol = 0.100 * 3.00 = 0.300 moles

Reaction ratio between CaCl2 and AgNO3 is 1:2. Hence moles of AgNO3 = 0.300 * 2 = 0.600 moles

Volume of AgNO3 = moles / conc = 0.600 / 0.100 = 6.00L

Of course the easy shortcut is that because both solutions are the same concentration you could just multiply 3.00 * 2, however this explanation should reason it out more clearly. Hope I helped you :)
3 0
3 years ago
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In which of the following species does sulfur have the lowest oxidation number? A) S8 B) SO(3)2- C)SO(4)2- D)S(2)O(3)2- E)S2-
sp2606 [1]

S^{2-} is having lowest oxidation number of sulphur in teh options given. The oxidation number is -2.

The correct option is E.

Explanation:

S^{2-} have oxidation number of -2, which is lowest in all the options given.

In the given examples S_{8} will have oxidation number zero because it is in elemental form. In the rules for oxidation number it is given that any element in free state has its oxidation number zero.

All other options are in compound form as:

SO_{3} ^{2-} =  oxidation number is +4. It is calculated as oxygen having O.N of -2,

The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.

x+3(-2)= -2

x = 4

SO_{4} ^{2-}= The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.

x +4(-2) = -2

x = +6

S_{2}O_{3^{2-} }

The charge on the atom is -2, so sum of the oxidation numbers of all the elements should be equal to -2.

2x + 3(-2) = -2

2x = 4

x = 2

S^{2-}= oxidation number is -2 as the charge on ion in equal to its oxidation number.

7 0
3 years ago
A saturated solution of AgCl is treated with solid NaCl until the [Cl−] is 0.46 M. What will be the resulting [Ag+] in solution?
Delicious77 [7]

Answer:

Check below

Explanation:

Ksp of AgCl = 1.8*10^-10

Ksp = [Ag+] [Cl-]

[Ag+] [Cl-] = 1.8*10^-10

Because [Ag+] = [Cl-] ,

[Ag+]² = 1.8*10^-10

[Ag+] = √((1.8*10^-10)_

[Ag+] = 1.35*10^-5M

That is [Ag+] in the original saturated solution.

NaCl is added to the saturated AgCl solution:

If Cl- = 0.72M , equation becomes

[Ag+] [ 0.72] = 1.8*10^-10

[Ag+] = (1.8*10^-10)/0.72

[Ag+] = 2.5*10^-10M

% Ag+ remaining in solution =(2.5*10^-10) / { (1.35*10^-5) * 100

% Ag+ remaining = 1.85*10^-3% or 0.00185%

Note that an approximation has been made here: [Cl-] is 0.72M + the unprecipitated Cl- from the AgCl. Because this latter is an infinitely small amount compared to 0.72M , it is quite safe to make this approximation without any effect on the answer.

220

4 0
3 years ago
Temperature is a measurement of :
Artyom0805 [142]

Answer:

Temperature is a measure of the average kinetic energy of the particles in an object. When temperature increases, the motion of these particles also increases. (That should give you the answer if you read closely first sentence)

8 0
3 years ago
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