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
jok3333 [9.3K]
4 years ago
15

To be considered fresh water, water must contain salt in a concentration _____.

Chemistry
2 answers:
DochEvi [55]4 years ago
7 0

The answer is to contain salt in low conecentrations.

Fresh water can only be considered fresh water, if and only if it contains less than 0.5 parts per thousands of salt in the water. Fresh water do contains salt, but it is in lower concentrations than salt water.


Explanation:

A body of water is taken into account recent once it doesn't contain considerable quantity of salt. The salt content of H2O is diversely expressed. However, additional ordinarily the used parameter and worth is zero.5 elements per thousand dissolved salts.

s water with a dissolved salt concentration of but I Chronicles.

polet [3.4K]4 years ago
3 0
<span>The answer is to contain salt in low conecentrations. Fresh water can only be considered fresh water, if and only if it contains less than 0.5 parts per thousands of salt in the water. Fresh water do contains salt, but it is in lower concentrations than salt water.</span>
You might be interested in
Read the given equation:
Assoli18 [71]

Answer:

D.

HCl is acid

Ca(OH)2 is base

CaCl2 is salt

5 0
3 years ago
8. How is acceleration dependent on the speed and direction of an object?
Sphinxa [80]

Answer:

if speed or direction changes then there is a change in velocity which is acceleration. Hope this helps!

Explanation:

3 0
3 years ago
7. Diethyl ether burns in air according to the following equation. C4H10O(l) + 6O2 (g) → 4CO2 (g) + 5H2O(l) If 7.15 L of CO2 is
iren [92.7K]

From the stoichiometry of the combustion reaction, we can see that 7.4 L of oxygen is consumed.

<h3>What is combustion?</h3>

Combustion is a reaction in which a substance is burnt in oxygen. The equation of the reaction is; C4H10O(l) + 6O2 (g) → 4CO2 (g) + 5H2O(l)

We can obtain the number of moles of CO2 from;

PV = nRT

n = 1.02 atm * 7.15 L/0.082 atm LK-1mol-1 * (125 + 273) K

n = 7.29 /32.6

n = 0.22 moles

If 6 moles of oxygen produces 4 moles of CO2

x moles of oxygen produces 0.22 moles of CO2

x = 0.33  moles

1 mole of oxygen occupies 22.4 L

0.33 moles of oxygen occupies 0.33 moles *  22.4 L/ 1 mole

= 7.4 L of oxygen

Learn more about stoichiometry: brainly.com/question/13110055

#SPJ1

6 0
3 years ago
Static electricity is the buildup of electric charges. Which of the following is an example of a natural discharge of static ele
Zepler [3.9K]

The answer is: C

This is because of clouds in the sky, there may be a positive charged cloud and a negative charged cloud, when both clouds come together they form a neutral cloud so the protons and electrons in both clouds become equal in one bigger cloud and the excess amout of electrons is the lighting.

3 0
4 years ago
Read 2 more answers
What is an electron that occupies the outermost energy level or shell of an atom called?
natta225 [31]
It's called a valence electron

And the outermost shell would be called a valence shell.
4 0
4 years ago
Other questions:
  • Above what fe2 concentration will fe(oh)2 precipitate from a buffer solution that has a ph of 8.18? the ksp of fe(oh)2 is 4.87×1
    12·1 answer
  • 1L= 1,000,000,000,000 _L
    12·1 answer
  • What is the maximum number of electrons that can be contained in a f subshell?
    8·1 answer
  • According to the ideal gas law, a 9.585 mol sample of krypton gas in a 0.8032 L container at 504.9 K should exert a pressure of
    5·1 answer
  • What is surface tension
    15·2 answers
  • Based on the bond angles in CH4, NH3, and H2O, rank the magnitude of these repulsions. Rank from strongest to weakest repulsion.
    12·1 answer
  • A 2.00 L sample of gas at 35C is to be heated at constant pressure until it reaches a volume of 5.25 L. To what Kelvin temperat
    11·1 answer
  • Naturally occurring bromine is composed of 50.7% of 79Br and 49.3% of 81Br. Atoms of 79Br have a mass of 78.9183 u and those of
    8·2 answers
  • In the equation 2 H2 + O2 → 2 H2O, the H2 molecules are ________ and the H2O molecules are ________.
    11·1 answer
  • In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!