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
geniusboy [140]
3 years ago
11

Which statement best describes the pH of pure water?

Chemistry
2 answers:
Ray Of Light [21]3 years ago
7 0

The pH of pure water is neutral because the concentration of hydronium ions equals that of hydroxide ions.

Answer: Option A

<u>Explanation:</u>

Water is one of the most important constituents of living being. It is said that there is no life without water. So that water need to neutral in nature to save life. Pure water is composed of hydronium H^{+} and hydroxide \left(O H^{-}\right) ions. It is known that hydronium ions are acidic in nature with concentration of 1 \times 10^{-7} \mathrm{M} / \mathrm{L}.

Similarly, the hydroxide ions which are basic in nature will be in same concentration as that of hydronium ions. So, as the concentration of basic and acidic elements are equal with the same strength of pH, the combination of these ions lead to formation of pure water with the pH being neutral.

GalinKa [24]3 years ago
5 0

Answer: is the first option (a)

You might be interested in
What is the highest occupied molecular orbital in the O2 molecule?
Aleonysh [2.5K]

H2 is known to exist. For dihydrogen, H2, we can identify the frontier molecular orbitals (FMOs). The highest occupied molecular orbital (or HOMO) is the σ (sigma) 1s MO. The lowest unoccupied MO (LUMO) is the σ* (sigma star) 1s MO which is antibonding.


3 0
3 years ago
plz answer 7 &amp; 8 because I dont get the answer... oh and you need to use the picture for the questions 7 &amp; 8 thanks
djyliett [7]
7. An exothermic reaction
8. The bonds are forming
4 0
3 years ago
You have a sample of 75.6 g of C3H8. How many moles of C3H8 are in the sample?
dsp73

The number of moles that are contained in the given mass of propane (C_3H_8 is 1.7143 moles.

<u>Given the following data:</u>

  • Mass of propane = 75.6 grams.

<u>Scientific data:</u>

  • The molar mass of propane = 44.1 g/mol.

To calculate the number of moles that are contained in the given mass of propane (C_3H_8):

<h3>How to calculate the moles of a compound.</h3>

In this exercise, you're required to determine the number of moles of propane that are contained in the given sample:

Mathematically, the number of moles contained in a chemical compound is given by this formula:

Number\;of\;moles = \frac{mass}{molar\;mass}

Substituting the given parameters into the formula, we have;

Number\;of\;moles = \frac{75.6}{44.1}

Number of moles = 1.7143 moles.

Read more on number of moles here: brainly.com/question/3173452

3 0
2 years ago
Give the name (not formula) of the hydrocarbon
nordsb [41]

hydrocarbon is ethene which is used to test for saturation and it undergoes addition reaction

5 0
3 years ago
Which of the following reactions is a synthesis reaction?
Vedmedyk [2.9K]
<h3>Answer:</h3>

B) 4H₂(g) + O₂(g) ⟶ 2H₂O(l)

<h3>Explanation:</h3>
  • Chemical reactions occur when compounds or elements combine to form new compounds or other elements.
  • Chemical reactions may be classified into various types which include synthesis reactions, replacement reaction, decomposition reactions, and precipitation reactions among others.
  • In our case, we were supposed to identify a synthesis reaction.
  • Thus, we need to know what is a synthesis reaction.
  • A synthesis reaction is a reaction that occurs when two elements or small compounds combine to generate a large compound.
  • In this case, B is the choice that shows a synthesis reaction where hydrogen gas combines with oxygen gas to yield water.
5 0
3 years ago
Other questions:
  • An unknown has a chemical formula of C4H10O. When chromic acid was added to the unknown, it turned green. When the Lucas reagent
    6·1 answer
  • You have an evacuated container of fixed volume and known mass and introduce a known mass of a gas sample. measuring the pressur
    13·1 answer
  • A first place finisher in a cross country meet ran 5,000 meters in 871.7 seconds. What was his average speed?​
    15·1 answer
  • Tollens\' reagent, [Ag(NH3)2] , is used to test for the presence of aldehydes. The reaction results in reduction of the silver i
    12·1 answer
  • Where else do you see Force &amp; Motion in real-world experiences?
    6·2 answers
  • Why are buffers important to living things ?
    12·1 answer
  • Can someone help me?
    9·2 answers
  • What is the percent mass concentration of a solution that has 40g of NaOHin 500g of solution?
    11·1 answer
  • Which property of matter is conserved in chemical reactions and shown by balanced equations?
    14·2 answers
  • 16) Acculturation refers to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!