Chemistry, 10.07.2019 03:30, edjiejwi

Aradioisotope is placed near a radiation detector, which registers 64 counts per second. eight hours later, the detector registers 8 counts per second. what is the half-life of the radioactive isotope?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 22:20, Brooke7644

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Answers: 2

continue

Chemistry, 22.06.2019 04:30, EinsteinBro

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Answers: 1

continue

Chemistry, 22.06.2019 11:00, craig4509

Classify this reaction: 2al+n2-> aln.

Answers: 1

continue

Chemistry, 22.06.2019 21:30, imalexiscv

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.

Answers: 1

continue

Do you know the correct answer?

Aradioisotope is placed near a radiation detector, which registers 64 counts per second. eight hours...