subject

Chemistry, 23.09.2019 22:30 brennarfa

Helium 8 has a half life of 4.5 years. how many rounds have gone by in 27 years?
carounds

ansver

Answers: 2

Show answers

Another question on Chemistry

question

Chemistry, 21.06.2019 21:40

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Answers: 3

question

Chemistry, 22.06.2019 07:10

Which of these conditions most likely produces an unstable isotope?

Answers: 2

question

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.

Answers: 1

question

Chemistry, 22.06.2019 17:30

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?

Answers: 2

You know the right answer?

Helium 8 has a half life of 4.5 years. how many rounds have gone by in 27 years?
carounds...

Questions

question

Social Studies, 21.06.2021 01:00

Consider the quadratic equation 4x2 – 11x – 3 = 0. Which of the following shows this equation is rewritten and ready to solve using factoring by group...

question

Mathematics, 21.06.2021 01:00

· Jasmine and four of her friends decided to split the cost of their friend's birthday party evenly. The total cost consisted of $525 to rent a party...

question

Mathematics, 21.06.2021 01:00

A college has 5,000 students. Of those 5,000 students, 1.700 are science majors. What percent of the student body are science majors? Answer - %

question

Mathematics, 21.06.2021 01:00

A line passes through point (-8,-6) and has a slope of - 3/4 Write an equation in Ax+By=C form for this line. Use integers for A, B, and...

question

Mathematics, 21.06.2021 01:00

The cost of having garbage picked up by Trash Masters is $7.00 flat fee plus $0.35 per pound of garbage. Write a linear equation that sho...

question

English, 21.06.2021 01:00

Many people disagree about the appropriate age to allow children and young adults to use social media. Write an essay that argues your viewpoint about...

question

Mathematics, 21.06.2021 01:00

The width of classroom is 4 meters less than the length, and the area is 192m^2. If the length is x m, find an equation in x and hence, find the dimen...

question

Social Studies, 21.06.2021 01:00

Which statement about single parents is TRUE? Financially, single mothers are hardest hit. Trying to be a peer versus a parent has great benefi...

question

Mathematics, 21.06.2021 01:00

I have no idea what to do ...

question

English, 21.06.2021 01:00

Drag each tile to the correct box. Match the narrative technique to the sentence that best demonstrates it. description reflection...

question

Arts, 21.06.2021 01:00

I know chadwick boseman also known as black panther passed away. lets pray he rests in peace. AMEN! im a pro at art i am drawing a portra...

question

Mathematics, 21.06.2021 01:00

Describe each transformation that must be applied to f(x)=x² to get the function g(x)=1/2(x+2)² (30 POINTS)...

question

Mathematics, 21.06.2021 01:00

Determine the amount to be paid in full settlement of each of the following invoices, assuming that credit for returns and allowances was received pri...

question

Social Studies, 21.06.2021 01:00

Discuss two arguments in criminal law amendment Act ,how it protects citizens against Gender Based violence...

question

Mathematics, 21.06.2021 01:00

Supervisor: “Your average call handling time decreased 20% in March! This is a great improvement compared to February's average call handling time, wh...

question

Mathematics, 21.06.2021 01:00

How many 1/4 doses can be drawn from a 7 and 1/2 vial of medication...

question

Mathematics, 21.06.2021 01:00

Suppose a friend tells you she paid a total of $16,368 for a car, and you'd like to know the car's list price (the price before taxes) so that you ca...

question

Mathematics, 21.06.2021 01:00

If f(c)= 2c−3 c−A and f(−1)=1, what is the value of...

question

Mathematics, 21.06.2021 01:00

Find mean, median, mode, range ...

question

History, 21.06.2021 01:00

Hello everyone! Please help me in this question! I would really appreciate that! In what ways was Anne of Green Gables an appropriate character to re...

More questions: Chemistry Another questions

Questions on the website: 13722363