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
stiks02 [169]
2 years ago
6

The half-life of tritium (H-3) is 12.3 years. If 48.0mg of tritium is released from a nuclear power plant during the course of a

mishap, what mass of the isotope will remain after 49.2 years?
Chemistry
1 answer:
Amiraneli [1.4K]2 years ago
3 0

Answer:

Explanation:

it is tough question plz give me some time i would give you your ans soon

You might be interested in
What air moves horizontally or parallel to the ground?
weqwewe [10]

Wind, air that moves to the ground

7 0
3 years ago
Please answer this!!!!!!!!!!!!!
NeX [460]
What’s the question?
8 0
2 years ago
Read 2 more answers
PLZZ HELP ASAPPPJKSOWLSOWOLWKSKW
Minchanka [31]
I’m pretty the answer would be continental slope. :)
I really hope this helps.
4 0
3 years ago
Read 2 more answers
The weights of all elements are always compared to oxygen.
marishachu [46]

Answer:

The weights of all elements are always compared to the Carbon-12.

Explanation:

The weights of all elements are always compared to the Carbon-12 because the mass of carbon is 12 which is the exactly the sum of protons and neutrons.  

Oxygen was also considered the standard for some time but later this stander was rejected because in natural O¹⁷ and O¹⁸ were also present and this create the two different atomic mass tables.

AMU:

Atomic mass unit is define as the 1/12 the mass of an atom of carbon-12.

C12 has six neutron and six protons in the nucleus.

This unit is used to express the masses of atoms. We know that masses of atoms are very small and we do not have any such type of balance that can measure very small quantity. So that is way we use this scale to measure small quantity. For example, according to this scale

relative atomic mass of hydrogen is 1.008 amu

relative atomic mass of oxygen is 15.999 amu

relative atomic mass of uranium is 238.0289 amu

relative atomic mass of chlorine is 35.453 amu

7 0
3 years ago
When 3.0 kg of water is warmed from 10 °C to 80 °C, how much heat energy is needed?
Naddik [55]

Answer:

THE HEAT NEEDED TO CHANGE 3KG OF WATER FROM 10 C TO 80 C IS 877.8kJ OR 877,800 J.

Explanation:

Mass = 3.0 kg = 3 * 1000 = 3000 g

Initial temperature = 10 C

Final temperature = 80 C

Change in temperature = 80 - 10 = 70 C

Specific heat of water = 4.18 J/g C

Heat needed = unknown

Heat is the amount of energy in joules needed to change a gram of water by 1 C.

Heat = mass * specific heat * change in temperature

Heat = 3000 g * 4.18 J/g C * 70 C

Heat = 877 800 Joules

Heat = 877.8 kJ.

The heat needed to change 3 kg mass of water from 10 C to 80 C is 877,800 J or 877.8 kJ.

6 0
3 years ago
Other questions:
  • A container holds 800 mL of a gas at 25.0 C and 745 tore. What will be the volume of the gas of the pressure is increased to 790
    11·1 answer
  • Which conversion factor should you use first to calculate the number of grams of co2 produced by the reaction of 50.6 g of ch4 w
    15·1 answer
  • PLEASE HELP The basic units of measurement for volume, length, and weight in the metric system are the?
    14·1 answer
  • In order for a liquid particle to become a gas it must: (choose all that apply) overcome the attractive forces of other liquid p
    6·1 answer
  • Does ecstasy drug effect how long you live?
    5·1 answer
  • Two categories based on a medium. "Hint" needs assistance
    8·1 answer
  • A que llamamos niveles y subniveles de energia?
    7·1 answer
  • 25. How is the information in an image sent through the digital signal system?
    5·2 answers
  • Chemical reactions differ from nuclear reactions in several important ways.
    8·1 answer
  • What are the conditions needed for reaction to happen in aldehydes and ketones?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!