Of the nuclei in a 15. The half-life of a radioactive nucleus is the time it takes for
sample to decay.
A. 50 disintegrations
B. 100 units
C. half
D. one-fourth

Iknow #2 is d. i just need to know why

How can you use chemical equations to predict the products of the reaction you can carry out?

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.