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weqwewe [10]
2 years ago
14

What's the meaning of pH indicator?

Chemistry
2 answers:
Goshia [24]2 years ago
5 0
Test how acidic or alkalitic it is
deff fn [24]2 years ago
5 0
The pH scale tells you how acidic or basic something is. Acidic elements are lower on the pH scale and as they move higher up the scale, they become more basic.
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Answer above should be correct!
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3 years ago
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Four moles of Argon gas are at a pressure of 1.90 atm, and the temperature is 50 degrees C. What is the volume of the gas?
soldier1979 [14.2K]
N = 4 moles of Ar2, P = 1.90 atm, V = ?
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2 years ago
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3 years ago
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krek1111 [17]
To solve the problem, we assume the sample to be ideal. Then, we use the ideal gas equation which is expressed as PV = nRT. From the first condition of the nitrogen gas sample, we calculate the number of moles.

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At the second condition, the number of moles stays the same however pressure and temperature was changed. So, the new volume is calculated as follows:

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7 0
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Which list of elements consists of a metal, a metalloid, and a nonmetal?
Anna007 [38]
C. Sn (tin) is a metal, Si (silicon) is a metalloid, and C (carbon) is a nonmetal
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