jennyfrozen12 jennyfrozen12

06-10-2022
Chemistry

contestada

12.5% of a radioactive sample are left. How many half-lives have passed?

Respuesta :

nprocks958 nprocks958

06-10-2022

Answer:

3 half lives have passed.

Explanation:

Answer Link

Otras preguntas

Which of the following is the best way to find the correct answer for an analogy question on a reading test? A. Cover the options and find the relationship. B.

PLEAZZE HELP Abraham Lincoln caused four states to join the Confederacy by a. declaring war b. firing on Fort Sumter c. emancipating the enslaved people d. call

2 is 10 times 0.02. true or false

Infrequent participation in physical activity can lead to a. high blood pressure during exercise b. muscle strain and soreness after exercise c. extra calories

Which of the following is true about the draft lottery? It was based on one's birth date. It eliminated college deferments. It kept the draft for ten more years

Why did some Americans want the United States to help Cuban revolutionaries fight against Spain in the late 1890s? a. Americans were afraid the United States co

in the executive branch the presidents cabinet is made up of

Why did government officials allow monopolies to operate without strong regulations during the gilded age? a. They believed monopolies would keep competiton al

In proteins, elements of secondary structure combine to form a(n) a. domain b. motif c. alpha helix d. beta sheet e. chaperone

The Neolithic revolution resulted in all of the following except a. increase of farming b. selection of plants for civilization c. domestication of animals f