Answer:
the acceleration i think is 10
Explanation:
5x10=50
Henri Becquerel is the first scientist who discover evidence of radioactivity.
Maria Curie is one of the most famous scientists in the world who invented the word "radioactivity". She discovered that radioactive materials gave out rays and discovered two elements: polonium and radium, which are extraordinary active.
C=0.10 mol/l
pH=-lg[H⁺]
HCl = H⁺ + Cl⁻
pH=-lgc
pH=-lg0.10=1.0
pH=1.0
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I believe the answer is the third option. Hope this helps! Please tell me if I am wrong or if there was an error in my answer... also sorry this answer is late.