He did experiments with combustion and gas's
They turn litmus paper blue.
Answer:
Explanation:
One quantitative measurement that can be made from the above diagram is the length of the ruler. The ruler is an instrument used to measure short distances in the order of centimeters. Longer distances can be measured using a tape rule.
Mass is the amount of matter a substance contains. Weight is a function of mass and gravity on a body. When the mass of a body is recorded, it is the same everywhere in the universe. Weight on the other hand varies as gravity changes.
PH scale is used to determine how acidic , basic or neutral a solution is. It can be calculated using the following equation
pH = -log [H₃O⁺]
hydronium ion concentration has already been given
[H₃O⁺] = 4.91 x 10⁻⁴ M
pH = -log[4.91 x 10⁻⁴ M]
pH = 3.3
the pH of medium is 3.3
It's a black residue consisting of carbon and any remaining ash that's obtained by removing water from animal substances (hope that helped)
