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4 years ago

Which compounds are classified as Arrhenius acids?

Chemistry

2 answers:

Olenka [21]4 years ago

6 0

Answer:The correct answer is option 4.

Explanation:

Arrhenius acids are those compounds which gives $H^+$ ions when dissolved in their aqueous solution.

$HA(aq)\rightarrow H^++A^-$

Arrhenius bases are those compounds which gives $OH^-$ ions when dissolved in their aqueous solution.

$BOH(aq)\rightarrow OH^-+B^+$

$HBr \& H_2SO_4$ are Arrhenius acids because they form $H^+$ ions in their respective aqueous solution.

$HBr(aq)\rightarrow H^++Br^-$

$H_2SO_4(aq)\rightarrow 2H^++SO_{4}^{2-}$

Hence, the correct answer is option 4.

Anastasy [175]4 years ago

5 0

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Look at the Recording station detector on the upper left side of the Gizmo. What happens when the seismic waves hit the recordin

Ne4ueva [31]

Answer:

I don’t know what recording station you’re referring to but, When seismic waves reach the seismograph, a graphical record, or seismogram, is produced

Explanation:

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3 years ago

Imagine that a new planet is discovered with two moons of equal mass: Moon A and Moon B. The mass of the new planet is greater t

kobusy [5.1K]

Answer: The gravitational pull on Moon B is greater than on Moon A because Moon B is closer to the new planet than Moon A.

Explanation:

The gravitational force exerted by the two objects on each other is inversely proportional to the square of the distance between the objects.

$F=G\frac{mM}{r^2}$

F = gravitational force or pull

G = gravitational constant on that planet

M = mass of the object-1

m = mass of object-2(Mass of Moon-A or Moon-B)

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$Force\propto \frac{1}{r^2}$

With decease in distance 'r' the force between the object increases or vice versa.So, from this we can say that the gravitational pull on Moon-B is more than the gravitational pull on Moon-A because the Moon B is closer than the Moon-A from the new planet.

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3 years ago

What is it about the structure of methyl alcohol that would result in two major peaks in its NMR spectrum?

UNO [17]

Explanation:

In case of methyl alcohol , i.e. , CH₃OH ,

counting the equivalent protons , there are three protons of the methyl group at are all equivalent , and shows the chemical shift at 3.4 - 4.0 ppm , there is the increase in the chemical shift value due to the presence of an electronegative oxygen atom .

And there is one more hydrogen atom in the alcoholic functional group , and this hydrogen will also show a chemical shift at 5.0 - 5.5 ppm .

Therefore ,

Methyl alcohol will show two signals due to methyl proton and another due to OH hydrogen .

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4 years ago

Is 6.022x 10^23 carbon atoms a mol

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Answer:

Yes

Explanation:

1 mol of any substance is equal to the avagadro constant

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3 years ago

A spring requires a force of 25 n to produce an extension of 2 cm in it. what is the work done in further extending it by 3 cm

Sonbull [250]

The force of a spring can be calculated by the expression:

F = kx where k is a constant and x is the distance.

From the problem statement, we can solve the value of k from the initial conditions given as F = 25 N and x = 2 cm.

25 = k (0.02)
k = 1250

We use the work formula which is force times the distance resulting to the expression:

W = (1/2)(kx^2)
W = (1/2)(1250)(0.03^2)
W = 0.5625 J

4 0

3 years ago

Read 2 more answers