Chemistry, 12.07.2021 22:30 boportsmouth7908
What is the significance of the half-life of a radioisotope?
O A. It tells what fraction of a radioactive sample remains after a
certain length of time.
B. It tells how long a radioisotope sample is considered dangerous.
C. It tells how much energy is released over the lifetime of a
radioactive sample.
D. It tells what kind of radioactivity is released through radioactive
decay.
Answers: 3
Chemistry, 22.06.2019 10:30
What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5
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Chemistry, 22.06.2019 14:10
13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.
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Chemistry, 22.06.2019 16:50
Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m
Answers: 3
Chemistry, 22.06.2019 19:30
Describe the forces both attractive and repulsive that occur as two atoms move closer together.
Answers: 1
What is the significance of the half-life of a radioisotope?
O A. It tells what fraction of a radio...
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