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
Alex_Xolod [135]
3 years ago
11

A radioactive sample has a half-life of 5 hours. What fraction of the sample will be left after 15 hours?​

Chemistry
1 answer:
DedPeter [7]3 years ago
6 0

Explanation:

hiiiii beautiful.........

You might be interested in
Can you think of any practical reasons why you might want to know if there is carbon dioxide in air mixtures? please help
san4es73 [151]
Yes.  carbon dioxide is deadly and i want to get away from it fast.
8 0
3 years ago
Molar mass is measured in units of
blsea [12.9K]
D. grams/ mole.
........
5 0
3 years ago
The variable in an experiment that is changed on purpose
DiKsa [7]
The answer is Independent Variable
4 0
3 years ago
A stack of 15 pennies is immersed into a 100 mL graduate initially containing 20.6 mL of water. The volume in the graduate cylin
Gekata [30.6K]

Answer: 5.4

Explanation: The Law of Impenetrability says that two objects can't occupy the same space at the same time; therefore, the pennies and the water can't occupy the same space at the same time. Without the pennies the water level read 20.6 mL, dropping in the pennies gives a level of 26.0.

5 0
3 years ago
Methanethiol, CH3SH, has a substantial dipole mement (1.52) even though carbon and sulfer have identical electronegativities. Ex
AleksAgata [21]

Answer:

The whole molecule is polar because Sulfur has lone pairs but Carbon doesn't. Lone pairs count more toward polarity, shifting dipole toward S.

Explanation:

Even though carbon and sulfur have identical values of electronegativities, the molecule, CH_3SH is polar because of the presence of the lone pairs on the sulfur atom.

The C-S bond is not polar because the both the atoms have electronegatiivty. <u>But S has lone pairs which can attract the bond pairs of the bond between the S and H and thus acquires slightly negative charge and H acquires slightly positive charge.</u>

6 0
3 years ago
Other questions:
  • 1)
    10·1 answer
  • Help asap, timed assingment
    6·1 answer
  • When hydrogen and oxygen combine to form water, which term is used to describe the water? A. product B. reactant C. catalyst D.
    7·2 answers
  • PLEASE HELP AS SOON AS POSSIBLE
    12·1 answer
  • By weight atmospheric air is approximately 23.15% oxygen and 76.85% nitrogen. What is the partial pressure of oxygen in the air
    10·1 answer
  • Can someone help me with this question?
    15·1 answer
  • Which of the following is true of a balanced equation?
    14·1 answer
  • Please help ASAP<br> Will give brainliest
    10·1 answer
  • What is gesso? a. A technique used by many Renaissance artists b. A medium used as a surface preparation or primer for a paintin
    9·1 answer
  • Will give brainlsit need answers asap!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!