alainacorkell2087
19.12.2020 •
Chemistry
[H+] for a solution is
1.87 x 10-11 M.
This solution is:
A. Acidic
B. Basic
C. Neutral
Solved
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Ответ:
Basic
Explanation:
pH = -log[H⁺] = - log(1.87 x 10⁻¹¹) = 10.73 (basic solution)
Ответ:
m = 2 kg
Explanation: Momentum is expressed as the product of mass and velocity. So to find the mass, we will derive the formula for momentum. p = mv, mass is
m = p/v
= 40 kg. m/s / 20 m/s
= 2 kg