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
Elis [28]
4 years ago
11

To survive and advance, humans have used the natural resources in their environment for at least as long as recorded history.

Chemistry
1 answer:
Otrada [13]4 years ago
3 0

Answer:

water, as there is 0.01% of itis left, mainly from polar caps, potable water is present, if it is not used carefully, then there will be no potable water for us to drink

Explanation:

You might be interested in
What do you think about our current forms of recycling? Why?
tankabanditka [31]
It is absurd. Environmentalists prefer that you don’t recycle at all because most if not all of our recyclables are being recycled incorrectly.
8 0
3 years ago
Which state of matter does lightning represent?<br><br><br> Solid<br> Liquid<br> Gas<br> Plasma
andrey2020 [161]
<h2>Answer:</h2>

Plasma

<h2>Explanation:</h2>

Plasma is the stuff of lightning, flame and stars. Plasma is neither solid, liquid nor gas plasma is a fourth state of matter.

Plasma is when the electrons are "freed" from their host atoms for a short time, due to high temperatures. Fire is plasma, it responds to electric fields. Lightning is also plasma.

4 0
3 years ago
Can you help me please lol​
xxTIMURxx [149]

Answer: Yes

Explanation:

8 0
3 years ago
The mole fraction of NaCl in an aqueous solution is 0.132. What is the weight/weight percent of NaCl in this solution?
Marrrta [24]

Answer:

\% w/w=33.1\%

Explanation:

Hello,

In this case, since the solution is formed by sodium chloride and water, we understand that for one mole of solution, we have 0.132 moles of sodium chloride and 0.868 moles of water, therefore, by using their molar masses we can compute their masses in the solution:

m_{NaCl}=0.132molNaCl*\frac{58.44gNaCl}{1molNaCl}=7.714gNaCl\\ \\m_{H_2O}=0.868molH_2O*\frac{18gH_2O}{1molH_2O}=15.624gH_2O

Thereby, we can compute the weight/weight percent as follows:

\% w/w=\frac{m_{NaCl}}{m_{H_2O}+m_{NaCl}}*100\%

So we use the previously computed masses:

\% w/w=\frac{7.714g}{7.714g+15.624g}*100\%  \\\\\% w/w=33.1\%

Best regards.

4 0
4 years ago
Please help will mark Brainliest
Anvisha [2.4K]
  • Lithium is very highly reactive
  • Chlorine is very highly reactive
  • Argon is unreactive.
<h3>What is the chemical reactivity?</h3>

The periodic table sort of makes it possible for us to be able to obtain the reactivity of the elements that are found in the periodic table. This is because, the reactivity of the elements that are in the periodic table generally depends on the group where the element is found in the table.

Lithium and chlorine are highly reactive because they are found in the first and the seventeenth groups of the periodic table which are known for the fact that they are very highly reactive.

Argon is found in group 18 thus it is not a highly reactive element.

Learn more about periodic table:brainly.com/question/11155928

#SPJ1

3 0
1 year ago
Other questions:
  • Choose the substance with the lowest surface tension. choose the substance with the lowest surface tension. (ch3)2so ch3ch2ch2ch
    11·1 answer
  • What is the total number of oxygen atoms on the right-hand side of this chemical equation?
    11·1 answer
  • ¿Aproximadamente para que año Aristóteles mencionó la teoría de los 4 elementos?
    6·1 answer
  • 4. A bird left its post and
    7·1 answer
  • Which of the following would be the best source from which to find evidence to support a claim in an argument about technology?
    10·2 answers
  • How many atoms of oxygen are in 2.5 moles of CO2
    9·1 answer
  • HELP! Which element has the following electron configuration: 1s22s22p63s23p64s23d104p65s24d105p5
    11·2 answers
  • 6. What does the symbol AH stand for?
    12·1 answer
  • What gas in the air is used by plants to make their own food? (2 points)
    8·2 answers
  • Assume the recommended single dose of ibuprofen for children over the age of two is 4.5 mg per pound (mg/lb) of body weight. Use
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!