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
Orlov [11]
3 years ago
6

The half-life of plutonium-238 is 87.7 years.

Chemistry
2 answers:
Margaret [11]3 years ago
8 0

Answer:

263.1 is exactly three half-life, so the remaining portion is (1/2 x 1/2 x 1/2) of the original sample. That's 1/8 which is 12.5%

kobusy [5.1K]3 years ago
6 0

Answer:

12.5 87.5

Explanation:

You might be interested in
How you would prepare 200.0mL of a 0.25M NaOH solution.<br> a) 2g<br> b) 4g <br> c) 8g <br> d) 6g
Anna007 [38]
I think it might be 8 but not 100 percent took class 2 years ago
3 0
3 years ago
Energy and Enthalpy Changes, Heat and Work -- Monatomic Ideal Gas dynamically generated plot 2.00-mol of a monatomic ideal gas g
larisa86 [58]

(a) The heat generated in the process is 28 kJ.

(b) The work done in the process is determined as -28 kJ.

(c) The change in the internal energy is 0.

<h3>Heat of the isothermal compression </h3>

The heat generated in the process is negative done in the process.

W = -PΔV

W = -P(V₂ - V₁)

<h3>From A to B</h3>

W = -P(VB - VA)

W = -11(7 - 12.5)

W = 60.5 L.atm = 60.5 x 101.325 J/L.atm = 6,130.16 J

<h3>From C to D</h3>

W = -25(20.5 - 7)

W = -337.5 L.atm = -34,197.18 J

Total work , w = -34,197.18 J +  6,130.16 J = -28 kJ

q = - w

q = 28 kJ

<h3>Change in internal energy</h3>

ΔE = q + w

ΔE = 28 kJ - 28 kJ = 0

Learn more about change in internal energy here: brainly.com/question/17136958

#SPJ1

6 0
2 years ago
As a trend or pattern,the atomic radius go from ______ left to right across the period but ______ top to bottom down a group
stepan [7]
As a trend or pattern, the atomic radius decreases as you go left to right across the period, but increases as you go down a particular group.
5 0
3 years ago
1. The Yerkes-Dodson Law says
goblinko [34]

Answer:

The Yerkes-Dodson Law suggests that there is a relationship between performance and arousal. Increased arousal can help improve performance, but only up to a certain point.

Explanation:

4 0
3 years ago
Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed
MariettaO [177]

Answer:c

Explanation:

7 0
4 years ago
Other questions:
  • What is the major organic product obtained from the following sequence of reactions? PhCH2CHO PhCH2CH2CHO PhCH2CH2COOH PhCH2COOH
    10·1 answer
  • Bgbdasldfibjodfbnadfbgnaodfbandobnadbnoabnadnbjonabdnadbnadfbndanfbnadbnabnadnbadnnbabnadbnasd'
    7·1 answer
  • What is the freezing point of a 0.82 m aqueous solution of a non-volatile non-electrolyte?
    8·1 answer
  • A harbour seal's flipper and a human hand have a very similar structure, but function differently. This is an example
    5·2 answers
  • 1.
    9·1 answer
  • The mass of one mole of any substance is equal to the _____.
    14·1 answer
  • In which of the following are the symbols and names for the ions given correctly?
    10·1 answer
  • Un hidrocarburo tiene como composición en masa: C= 85.8% ; H= 14.2% . Como dato nos brindan que una molécula de este compuesto p
    7·1 answer
  • Which of the following is a balanced equation?<br><br>Select one:<br>a. A<br>b. B<br>c. C<br>d. D​
    7·2 answers
  • The graduated cylinder below shows major scale divisions every 5 mL. How should the volume of the liquid be recorded? Use the co
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!