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
Andre45 [30]
3 years ago
13

Water that is returned to the environment after secondary treatment is known as

Chemistry
2 answers:
jarptica [38.1K]3 years ago
6 0
Water that is returned to the environment after secondary treatment is known as effluent
Nitella [24]3 years ago
6 0
<span>If you are talking about waterwaste management => Water that is returned to the environment after secondary treatment is known as</span> secondary-treated wastewater

but if not the answer is <u>effluent</u>
You might be interested in
How many grams are in 5.60 moles of sodium hydroxide (NaOH)​
Illusion [34]

Answer: I believe it should be 224g.

Explanation: There are 40g for every one mole of NaOH, so multiply the two to get to 224. I hope that helps!

8 0
3 years ago
Read 2 more answers
How much<br>much hydrogen gas evolved<br>when 1.5 current is passed through water for 1.5 hours?​
evablogger [386]

0.042 moles of Hydrogen evolved

<h3>Further explanation</h3>

Given

I = 1.5 A

t = 1.5 hr = 5400 s

Required

Number of Hydrogen evolved

Solution

Electrolysis of water ⇒ decomposition reaction of water into Oxygen and Hydrogen gas.

Cathode(reduction-negative pole) : 2H₂O(l)+2e⁻ ⇒ H₂(g)+2OH⁻(aq)

Anode(oxidation-positive pole) : 2H₂O(l)⇒O₂(g)+4H⁻(aq)+4e⁻

Total reaction : 2H₂O(l)⇒2H₂(g)+O₂(g)

So at the cathode H₂ gas is produced

Faraday : 1 mole of electrons (e⁻) contains a charge of 96,500 C

\tt mol~e^-=\dfrac{Q}{96500}

Q = i.t

Q = 1.5 x 5400

Q = 8100 C

mol e⁻ = 8100 : 96500 = 0.084

From equation at cathode , mol ratio e⁻ : H₂ = 2 : 1, so mol H₂ = 0.042

4 0
3 years ago
one bottle of aspirin holds 250 tablets, each containing 150 mg of aspirin and sells for $2.95. Another bottle holds 125 tablets
AlladinOne [14]
I bottle:

250 * 150mg = 37500mg

If 37500mg ------- cost ------- <span> $2.95
so 1mg       ------- cost ------- x

x = 1mg*</span> $2.95 / 37500mg =  $7,87*10⁻⁵ 

II bottle

125 * 200mg = 25000mg

If 25000mg ---------- cost ---------- <span>$3.50
so 1mg       ---------- cost ---------- x

x = 1mg* </span>$3.50 / 25000mg = $0,00014=$1,4*10⁻⁴


$7,87*10⁻⁵  < $1,4*10<span>⁻⁴
</span>
1st bottle is better bargain cause 1mg of aspirin its cheaper than in 2nd.
7 0
3 years ago
What is a tolerant of sea spray? I NEED HELP WITH THIS QUESTION !!! Answer fast for 20 poins
DedPeter [7]

Answer:

American Holly, Black Pine, Blue Pacific Juniper, Blue Dune Grass, Artemesia) MODERATELY SALT TOLERANT: plants always need protection from salt spray but will tolerate some inundations by storm surges. They are best used behind fences or buildings. (

3 0
3 years ago
The teacher in item 10 also needs to order plastic tubing. If each of the 60 students need 750 mm of tubing, what length of tubi
Alex777 [14]

45 m. If each student needs 750 mm of tubing, the teacher should order 45 m of tubing.

a) Find the <em>length in millimetres</em>

Length = 60 students x (750 mm tubing/1 student) = 45 000 mm tubing

b) Convert <em>millimetres to metres </em>

Length = 45 000 mm tubing x (1 m tubing/1000 mm tubing) = 45 m tubing

6 0
3 years ago
Other questions:
  • When Cl2 gas is added to water during the disinfection of drinking water, it hydrolyzes with the water to form HOCl. The disinfe
    10·1 answer
  • PLEASE HELP!!!
    7·2 answers
  • What is the key difference between a liquid and a gas?
    6·2 answers
  • How is the telegraph you made like the one morse made?
    7·1 answer
  • The image shows the formation of a fault-block mountain.
    7·2 answers
  • A solution is prepared by mixing 631 mLmL of methanol with 501 mLmL of water. The molarity of methanol in the resulting solution
    12·2 answers
  • Methane gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23oC to a final volume of 34.6 L. During the expansion t
    7·1 answer
  • Which of the following is an example of an energy transformation?
    8·1 answer
  • Of all chlorine atoms, 75.771% are chlorine-35. Chlorine-35 atoms have
    13·2 answers
  • CAN SOMEONE PLEASE HELP ME WITH THIS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!