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
antoniya [11.8K]
2 years ago
5

A The birthrate is higher than the death rate.

Chemistry
1 answer:
Viktor [21]2 years ago
6 0
C the immigration rate is higher than the emigration rate
You might be interested in
What are some examples of how matter moves through a cycle on earth ​
olganol [36]

Answer:

Ocean, lakes and rivers. Are all liquids.

Explanation:

Ocean, lakes and rivers. Are all liquids. Snow starts off as a liquid, evaporates into a gas and camoes back as snow.

4 0
3 years ago
How is a nuclear weapon engineered?
Lady_Fox [76]

Answer:The first task of a nuclear weapon design is to rapidly assemble a supercritical mass of fissile uranium or plutonium. A supercritical mass is one in which the percentage of fission-produced neutrons captured by another fissile nucleus is large enough that each fission event, on average, causes more than one additional fission event. Once the critical mass is assembled, at maximum density, a burst of neutrons is supplied to start as many chain reactions as possible. Early weapons used a modulated neutron generator codenamed "Urchin" inside the pit containing polonium-210 and beryllium separated by a thin barrier. Implosion of the pit crushed the neutron generator, mixing the two metals, thereby allowing alpha particles from the polonium to interact with beryllium to produce free neutrons. In modern weapons, the neutron generator is a high-voltage vacuum tube containing a particle accelerator which bombards a deuterium/tritium-metal hydride target with deuterium and tritium ions. The resulting small-scale fusion produces neutrons at a protected location outside the physics package, from which they penetrate the pit. This method allows better control of the timing of chain reaction initiation.

Explanation:

8 0
3 years ago
crash course video about periodic table - The Periodic Table: Crash Course Chemistry #4 - write a reflection about this video
Stolb23 [73]

Answer:

I liked the video, it gave us lots of information about___. __ means/ is about.

Explanation:

7 0
3 years ago
3) A standard mass of 250.0 g was placed on a balance. The balance said it had a mass of 243.9
Roman55 [17]

Answer:

20

Explanation:

8 0
3 years ago
With no difference in temperatures and 100% humidity, will it rain? Why or Why not?
Artyom0805 [142]
Not necessarily, rain needs some mechanism such as instability of vertical air movement..
7 0
3 years ago
Other questions:
  • The noble gases are located in which column of the periodic table?A. 1B. 6C. 9D. 18
    6·1 answer
  • How many moles of nitrogen are in 2.0×10−2mole of quinine?
    13·1 answer
  • What does your data indicate about the optimum ph level for this enzyme-catalyzed reaction?
    10·1 answer
  • When you exercise, the burning sensation that sometimes occurs in your muscles represents the buildup of lactic acid (HC3H5O3).
    7·1 answer
  • Nickel has 28 protons if it has 31 neutrons, what is it’s atomic mass?
    7·1 answer
  • A solution contains naphthalene (c10h8) dissolved in hexane (c6h14) at a concentration of 10.00 % naphthalene by mass. part a ca
    10·2 answers
  • Please help!! Will name brainliest!! Lots of points. Please I need really quick!! I'd really appreciate it
    6·1 answer
  • ELABORE 5 QUESTÕES SOBRE EQUILÍBRIO QUÍMICO, ME AJUDEM PFVR!!!!​
    13·1 answer
  • Mixing agno3 and nacl will produce what white precipitate.
    14·1 answer
  • You have 500,000 atoms of a radioactive substance. After 2 half-lives have past, how many atoms remain?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!