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Lubov Fominskaja [6]
3 years ago
5

The pH scale from 7 to 14 is for a(n) What .

Chemistry
1 answer:
Inessa [10]3 years ago
7 0
The pH scale from 7-14 means it is a base

A substance used to determine pH is an indicator

Commonly used acid indicator is litmus paper (aka pH paper)

Hope this helps! Let me know if you need more help!
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The term “ average atomic mass “ is a ______average so is calculator different Lee from a normal average
hoa [83]

Average atomic mass of an element is a sum of the product of the isotope mass and its relative abundance.

For example: Chlorine has 2 isotopes with the following abundances

Cl(35): Atomic mass = 34.9688 amu; Abundance = 75.78%

Cl(37): Atomic mass = 36.9659 amu; Abundance = 24.22 %

Average atomic mass of Cl = 34.9688(0.7578) + 36.9659(0.2422) =

                                             = 26.4993 + 8.9531 = 35.4524 amu

Thus, the term “ average atomic mass “ is a <u>weighted</u> average so it is calculated differently from a normal average

3 0
3 years ago
All of the facts about our star the Sun listed below are true EXCEPT which option?
Ronch [10]

Answer:

the sun is the smallest object in our Solar System

Explanation:

7 0
3 years ago
Exactly 10.0 L of air -25°C is heated to 100.0°C. What is the new volume if the pressure is kept constant?
zepelin [54]

Answer: V2= 15.0403226 Liters

Explanation:

Use V1/T1=V2/T2

Make sure you change the degrees Celsius to Kelvin. (Kelvin = degrees Celsius +273)

10.0L / 248 K = V2/ 373 K

Cross multiply V1 and T2 and divide by T1

(10.0 L)( 373K)/ 248 K = V2

V2= 15.0403226 Liters (Kelvin cancels out)

4 0
3 years ago
Which is NOT a component of galaxies? * F. Universe G. Stars H. Dust J. Planets​
Afina-wow [57]

Answer:

F. Universe

Explanation:

Universe and Galaxies are two different things.

4 0
2 years ago
1.Calculate the molarity of a 6.15% (w/v%) sodium hypochlorite (NaOCl) solution (i.e. in a 100 ml of solution there is 6.15 gram
shtirl [24]

Answer:

C  U  M

Explanation:

3 0
3 years ago
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