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I am Lyosha [343]
4 years ago
7

Which of the following is true? A). An indicator is not pH sensitive. B). The equivalence point...

Chemistry
1 answer:
Pepsi [2]4 years ago
8 0

Answer:

B). The equivalence point is where the amount of acid equals the amount of base during any add-base titration.

Explanation:

Equivalence point -

During the process of titration of the neutralization reaction , like acid - base reaction .

In the titration process , the equivalence point is the point , when the amount of acid is equal to the amount of base .

In indicator used for th process is pH sensitive ,

It is not always necessary to have pH = 7 at the equivalence point ,

The titration curve is plotted for the pH v/s base .

Hence , from the given options , the correct statement is ( B ) .

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Choose your favorite super hero that gained their powers from radiation. What
dmitriy555 [2]

Answer:

Copy and paste "Electromagnetic waves are categorized according to their frequency f or, equivalently, according to their wavelength λ = c/f.  Visible light has a wavelength range from ~400 nm to ~700 nm.  Violet light has a wavelength of ~400 nm, and a frequency of ~7.5*1014 Hz.  Red light has a wavelength of ~700 nm, and a frequency of ~4.3*1014 Hz." into google, and the correct website pops up as the first result.

Explanation:

I tried to link the website that I use to convert wavelengths and frequencies into types of light, but it deleted my answer, so I guess we're doing it this way. As for converting the wavelength to energy, the same principles apply as before:

Frequency: ν       Wavelength: λ       Energy: E       Speed of light: C (3.00e8)       Planck's Constant: h (6.626e-34)

ν -> λ    λ = C/ν

λ -> ν    ν = C/λ

For either of these equations, wavelength must be converted to meters or nanometers, depending on the equation.

For ν -> λ, after doing the equation, convert the wavelength into nanometers by dividing by 1e-9.

For converting λ -> ν, convert the wavelength into meters by multiplying by 1e-9.

For energy: E = hν = hc/λ

6 0
3 years ago
Which of the following is NOT a chemical reaction?
Natali [406]
Slicing carrotsin a chemical reacționat the reactants, which are on the left side of the equation should become something else which are the products on the right side of the equation!
You get nothing but also carrot when slice it up but for example frying an egg due to the heat, chemical energy, you get scrambled egg or whatever!
4 0
3 years ago
Read 2 more answers
What are metals and non metals in a backpack
Svet_ta [14]
Non metals could be:
pencils
books
paper

metals could be:
pens 
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6 0
4 years ago
20 point for right answer
MaRussiya [10]

Answer:The below file contains the answer

Explanation:

5 0
3 years ago
Are the products and balancing correct for this Equation:
goldfiish [28.3K]

Answer:

False

Explanation:

Chemical reaction equation:

                   C₅H₁₂ + 8O₂ → 2CO₂ + 6H₂O

Most chemical reactions obey the law of conservation of mass. By so doing, the number of chemical elements on both sides of the expression must be balanced.

                 Reactants                                          Products

C                    5                                                           4

H                  12                                                           12

O                 16                                                             10

We see that for C and O, the number of atoms on both sides of the expression differs and so, it is not balanced.

3 0
3 years ago
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