Chemistry, 09.12.2019 00:31 jxgcyttigfccvn8087
The starting amount of radioactive iodine-131 was 250 g. the half-life is 8 days. when leslie measured the amount, she measured 15.625 g of radioactive iodine. how many days have elapsed between measurements?
a. 16
b. 24
c. 32
d. 64
Answers: 2
Chemistry, 21.06.2019 19:00
Y=β1x + 7 if y has a value of β24 what is the value of x?
Answers: 1
Chemistry, 22.06.2019 12:00
What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients
Answers: 1
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
The starting amount of radioactive iodine-131 was 250 g. the half-life is 8 days. when leslie measur...
Mathematics, 19.04.2021 19:10
Mathematics, 19.04.2021 19:10
Computers and Technology, 19.04.2021 19:10
Mathematics, 19.04.2021 19:10
Mathematics, 19.04.2021 19:10
Mathematics, 19.04.2021 19:10
Spanish, 19.04.2021 19:10
History, 19.04.2021 19:10
Mathematics, 19.04.2021 19:10
Engineering, 19.04.2021 19:10