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
Juli2301 [7.4K]
3 years ago
10

7. Carbon-11 has a half-life of 20 minutes. Explain what this means.

Chemistry
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

half life of carbon 11=20 mins

it means that after 20 mins the given sample of carbon-11 will reduce by half of its original value

Explanation:

You might be interested in
Draw the ketone produced from the oxidation of 2-pentanol.
natulia [17]
When 2-pentanol gets oxidized you end up with 2-pentanone. In this case, since we are oxidizing a secondary alcohol you end up with a ketone. They cannot be oxidized further than that. If it was a primary alcohol you would end up with an aldehyde.

You can find the mechanism as well the molecule formula of both 2pentanol and 2pentanone attached.
8 0
3 years ago
The phrase "Most ecosystems are solar powered" refers to the fact that most organisms seek sunlight. solar energy is converted t
Savatey [412]

Answer:

The solar energy is converted to chemical energy by the process of photosynthesis - This is the true statement of the given question.

Explanation:

An ecosystem usually refers to the biological community comprising all the types of living species that are continuously interacting with the surrounding environment. Most of these ecosystems are solar-powered, and by this phrase, it means that there occurs the transformation of energy from solar to chemical energy which is taking place due to the process of photosynthesis. Both the terrestrial and the aquatic, are able to carry out this process in the presence of sunlight, water, and CO₂, and in return, it liberates food and oxygen into the ecosystem.

Thus, this statement satisfies the given phrase.

All other options are false as it does not justify the phrase.

5 0
3 years ago
What is the date of discovery of element Mercury
STALIN [3.7K]

2000 BC and was found in tubes in Egyptian tombs dated from 1500BC

hope this helps

4 0
3 years ago
Read 2 more answers
What is the equilibrium constant for the reaction<br> SO2(g) + NO2(g) = S03(g) + NO(g)?
aev [14]

Answer:

Keq: [SO3][NO] /[SO2]NO2]

Explanation:

3 0
1 year ago
Fill in the missing blanks in the equation below active enzyme
Anni [7]
There is no equation
4 0
3 years ago
Other questions:
  • Which of the following elements most readily accepts electrons? A. silicon B. chlorine C. sulfur D. phosphorus
    11·1 answer
  • Which statement is the best example of pseudoscience? (1 point) Scientists have observed many constellations in our universe. Mo
    6·2 answers
  • Which of Newton's Laws of motion requires you to have brakes on your bicycle?
    11·1 answer
  • When burning 180g of glucose in the presence of 192g of oxygen, water and carbon dioxide are produced?
    9·1 answer
  • Suppose an atom gains an e-. What will be the overall electrical charge? What if an atom loses one e-? 
    10·2 answers
  • The solubility of AgNO3 at 10° and 20°C are 170g and 222g per 100g H2O. What is the sign of change of heat of solution for AgNO3
    5·1 answer
  • a researcher finds 17grams of bromine will react with 3.404g of oxygen respectively. what is the mass of oxygen per one gram of
    14·1 answer
  • In general, agitation causes the dissolving rate of most solutes to:
    10·1 answer
  • What kind of salts are formed if you react metals carbonates with sulphuric acid?
    8·2 answers
  • How many atoms of carbon are present in 10 grams of coke?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!