1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
just olya [345]
2 years ago
5

The half-life of 131I is 8.021 days.What fraction of a sample of 131I remains after 24.063 days

Chemistry
1 answer:
Leno4ka [110]2 years ago
5 0
24.063/8.021 = 3 half lives
(1/2)^3 =1/8 
You might be interested in
What are the units of density
Nataliya [291]

Answer:

Kg/ ml

Explanation:

Hope I help you

thank you

6 0
2 years ago
Need help, please help
expeople1 [14]

Answer:

D

Explanation:

3 0
2 years ago
Read 2 more answers
This is a solution whose solvent is water.
Anastasy [175]
It would be the Aqueous solution
8 0
3 years ago
A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 6
Alexxandr [17]
Specific heat capacity is the required amount of heat per unit of mass in order to raise teh temperature by one degree Celsius. It can be calculated from this equation: H = mCΔT where the H is heat required, m is mass of the substance, ΔT is the change in temperature, and C is the specific heat capacity.

H = m<span>CΔT
2501.0 = 0.158 (C) (61.0 - 32.0)

C = 545.8 J/kg</span>·°C
5 0
3 years ago
in the process of electricity, what flows through the wires?A) protons B)neutronsC)electronsD)positrons
gizmo_the_mogwai [7]

Electrons is your answer

8 0
3 years ago
Other questions:
  • 1.1 Outline a method for separating the chalk from potassium chloride,
    13·1 answer
  • If you have exactly 2.00 moles each, of two different substances, then which of the following must be true about the two samples
    9·1 answer
  • What is due to acid formed when atmospheric and volcanic gases mix in water pizzazz helpp​
    7·1 answer
  • Draw the structure of two alkenes that would yield 1-methylcyclohexanol when treated with Hg(OAc)2 in water, then NaBH4:Draw the
    15·1 answer
  • 6PbO + O2 → 2Pb304<br> a. How many grams of Pb304 are produced from 8.50 grams of lead(II) oxide?
    11·1 answer
  • Explain the relationship between the mole, particles, grams, and Liters.
    15·1 answer
  • Enter your answer in the provided box.
    6·1 answer
  • You and your science group have been handed five mineral samples to identify. First, you sort the minerals by color. One has man
    5·1 answer
  • SOMEONE PLZZ help me on this chemistry test I need to pass it to be able to get my grade up :(((
    14·1 answer
  • Besides drinking water, how is water helpful for life and nature?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!