Chemistry, 04.05.2021 05:30 t779

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? a. 3.5 O b. 28.2 O c. 14.1 O d. 7.1

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 22:30

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Answers: 1

Answer

Chemistry, 22.06.2019 00:10

Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.

Answers: 2

Answer

Chemistry, 22.06.2019 10:30

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Answers: 1

Answer

Chemistry, 22.06.2019 16:00

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Answers: 2

Answer

You know the right answer?

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this i...

Questions

Social Studies, 04.08.2019 20:40

Which of the following summarizes ashoka’s message in this edict?...

Mathematics, 04.08.2019 20:40

Writ an expression they represents the statement add 9 and 3 then multiply by 6...

Biology, 04.08.2019 20:40

Fertilization, the uniting of a sperm and an egg, most often occurs in the a) ovary. b) uterus. c) cervix. d) fallopian tubes....

Mathematics, 04.08.2019 20:40

What is the slope of a line perpendicular to the line with equation y = 4x + 5?...

English, 04.08.2019 20:40

Brent wants to purchase video games online. each video game cost $20 and shipping for the entire order is $9 he has no more than a hundred to spend wh...

English, 04.08.2019 20:40

Why does justine confess to william’s murder in frankenstein....

Mathematics, 04.08.2019 20:40

Is y= 2x cubed +6 linear or non-linear...

Mathematics, 04.08.2019 20:40

How do you write 6,301.005 in standard form...

History, 04.08.2019 20:40

When mendel crossed two hybrid plants for stem height (tt), what results did he always get?...

Health, 04.08.2019 20:40

Can hiviaids be transmitted from one person to another without any fomm of sexual contact and why?...

Biology, 04.08.2019 20:40

As a seed plant germinates, the new plant is called a(n) after the leaves first open. answers provided 1.embryo 2.seeding 3.stem 4.egg...

Mathematics, 04.08.2019 20:40

Proportional relationship between x and y...

Health, 04.08.2019 20:40

Why does self esteem generally increase during adulthood...

Mathematics, 04.08.2019 20:40

At one of new york’s traffic signals, if more than 17 cars are held up at the intersection, a traffic officer will intervene and direct the traffic. t...

Mathematics, 04.08.2019 20:40

Taylor says my apartment number is a prime number wat number is taylor's apartment number a. 115 b. 273 c. 317 d. 414...

Biology, 04.08.2019 20:40

Around week eight, the embryo becomes a the kidneys, liver, brain, and lungs are all beginning to function. the fingers and toes are separate and the...

Mathematics, 04.08.2019 20:40

Which of the following is a factor of p(x)=x^5-4x^3-2x^2-4x? a. x-2 b. x c. x+2 d. x-1...

Mathematics, 04.08.2019 20:40

Write a equation for the word sentence. the sum of a number and 4.5 is 8.2 idk how to do this do you divid it or something...

Mathematics, 04.08.2019 20:40

Jessica skates 4 laps in 82 seconds which of the following is an equivalent skating?...

Biology, 04.08.2019 20:40

Which processes occur in a plant embryo before it pushes out of the soil? check all that apply. 1.it uses food from the seed. 2.its leaves open. 3.i...

More questions: Chemistry Another questions

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? a. 3.5 O b. 28.2 O c. 14.1 O d. 7.1​

Answers

Another question on Chemistry

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 113 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? a. 3.5 O b. 28.2 O c. 14.1 O d. 7.1