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
grin007 [14]
3 years ago
11

how can there be so many different substances in the world if there are only a few elements that are common? 

Physics
1 answer:
LuckyWell [14K]3 years ago
3 0
-- If there are only  <em>10</em>  elements in the universe that can make compound molecules, and a compound molecule can be formed by combining  1,  2,  3, or  4  different elements, then that's already the possibility of  at least 400 different molecules.

-- There are many more than  10  elements that can combine to form compound molecules.

-- Every single "<em>organic</em>" molecule, of which there are thousands, is the combination of <em>carbon</em> with other elements.

-- Most all of the substances that can be distilled out of oil, including the paraffin waxes, the alcohols, gasoline, kerosene, butane, propane, octane, and natural gas, are made of just carbon, hydrogen, and oxygen, only with different numbers of each one. 

-- Plastics, drugs, rubber, and DNA are examples of molecules that are made of <em>hundreds</em> of atoms.
You might be interested in
What is the frequency if a wave that pases a given pount 22 times in 2 seconds
34kurt

The answer is B. 11 Hz

3 0
3 years ago
A student drops an egg from the roof of their house onto a trampoline. The egg feels a change in momentum of 2.2 kg^ * m/s in 1.
geniusboy [140]

Answer:

F = m a = m v / t       where v is the change in velocity in time t

F = p / t       since m v is equal to p

F = 2.2 (kg m / s) / 1.1 s = 2 kg-m / s^2 = 2 N

Or you can use the impulse equation

8 0
2 years ago
a sound pulse emitted underwater reflects off a school of fish and is detected at the same place 0.01 s later. how far away are
andrew-mc [135]
In fresh water sound waves travel at 1497m/s at 25 degrees, I'll assume that's the characteristics of the water.

If it's 0.01s then you need to divide the speed by 100 to get the, 14.97, however it gets there and back in that time so you need to halve it.
<u>7.485m</u>
5 0
3 years ago
Explain the law of conversion of energy with an example and explain it ​
Sophie [7]

Answer:

The law of conservation of energy can be seen in these everyday examples of energy transference: Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy. ... The cue ball loses energy because the energy it had has been transferred to the 8 ball, so the cue ball slows down.

5 0
3 years ago
Read 2 more answers
All of the following are regulated by the medulla except
Fantom [35]

Answer:

D. flight or flight response.

Explanation:

im 99.999999% sure im right.

hey

vegan mac n cheese

always has been

6 0
3 years ago
Other questions:
  • Two different objects are 3 meters from the reference point on a graph and share the same y-coordinate.
    5·1 answer
  • You venture out on a cold winter morning to warm up your vehicle. You have layers of cotton/polyester blend clothes on and from
    11·1 answer
  • SECTION B<br>THEORY QUESTIONS<br>(1a) Define the following<br>(a) Work:​
    6·1 answer
  • Glass absorbs ultraviolet (UV) rays from the Sun. Would a fraction of the incident UV light be reflected from the air/glass boun
    5·1 answer
  • Suppose two comets, comet A and comet B, were orbiting the sun, having the same average orbital radii. If comet A had a higher o
    7·1 answer
  • The tendency of two masses alone in the universe to<br> drift together is a result of
    14·1 answer
  • Which of these is another name for Newton's
    10·2 answers
  • A fisherman sees 7 wave crests go by in 10.0 s. The crests are 2.43 m apart. Find the period of the wave. (Unit = s)​
    11·2 answers
  • Which property of a wave is labeled "x" on the diagram?
    5·1 answer
  • True or false? Please help me !
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!