Answer:
The pH of pure water (H20) is 7 at 25oC, but when exposed to the carbon dioxide in the atmosphere this equilibrium results in a pH of approximately 5.2. Because of the association of pH with atmospheric gasses and temperature, it is strongly recommended that the water be tested as soon as possible.
Answer:
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Explanation:
Find the value of the following expression using suitable properties of whole numbers
and name the property used.
789 × 175 – 75 × 789
Answer:
I think the answer might be because Atomic mass is the weighted average of the naturally occuring isotopes. Also with the fact that it's not an integer, it would almost never be a whole number
Explanation:
Mass of solute ( m₁ ) = 50 g
mass of solvent ( m₂ ) 250 g
p = m₁ / m₁ + m₂ * 100 %
p = 50 / 50 + 250
p = 50 / 300
p = 0.17 * 100
p = 17%
hope this helps!
Answer:
3
Explanation:
third answer might be right