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
just olya [345]
3 years ago
8

All of the following can be used to define a base except (3 points) Question 1 options: 1) a hydronium ion donor in a reaction 2

) a substance that increases the concentration of hydroxide ions 3) an electron pair donor in a reaction 4) a substance that is a hydrogen ion acceptor in a reaction
Chemistry
1 answer:
uranmaximum [27]3 years ago
4 0
Answer is: <span>1) a hydronium ion donor in a reaction.
Base is hydroxide ion (OH</span>⁻) donor, not hydronium ion (H₃O⁺).
Lewis base <span>can donate its lone pair of electrons to Lewis acid.
Base </span><span>increases the concentration of hydroxide ions, for example sodium hydroxide or barium hydroxide in water NaOH </span>→ Na⁺ + OH⁻.
You might be interested in
Which statement best describes the properties of ionic compounds? They are brittle, solid at room temperature, and have a high m
djverab [1.8K]
They are good conductors of heat and electricity.

They are solid at room tempature

They have a high melting point
6 0
3 years ago
Read 2 more answers
When 1 mole of carbon is burned, carbon dioxide is produced, and 393 kilojoules (kJ) of energy are released. If this reaction is
EleoNora [17]
The energy of 393 kJ is released as heat.  Then, the container will experience an increase of temperature and, given that it is sealed, also an increase of pressure.

The increase of temperature results from the heat developed during the reaction.

The increase of pressure results from the fact that that the solid carbon will become gaseuos carbon dioxide. This gas will occupy a larger volume than the solid carbon and also this elevation of the temperature will make the pressure of the gas inside the container increase.

7 0
3 years ago
What type of substance contains more than one kind of element joined by chemical bonds?
Usimov [2.4K]

<span>The answer is compound.  Elements are composed of one kind of atoms bonded together. There are different types of compounds: ionic, complexes, molecular, and intermetallic compounds. The proportion of elements in the compound is expressed using a chemical formula. An example of an element is Aluminium while an example of a compound is H2S (Hydrogen sulfide).</span>






3 0
3 years ago
Saponification is a chemical reaction _____. A. due to the presence of a strong organic acid. B. that results in an alcohol and
dezoksy [38]

Answer:

that results in an alcohol and a carboxylic acid.

Explanation:

Saponification is a chemical reaction process of alkaline hydrolysis of esters(R'COOR group) by which soap is obtained.

For Example, when a base such as sodium hydroxide [NaOH]  is used to hydrolyze an ester, the products are a carboxylate salt and an alcohol. Because soaps are prepared by the alkaline hydrolysis of fats and oils.

In a saponification reaction, alkaline hydrolysis of fats and oils with sodium hydroxide  yields propane-1,2,3-triol and the corresponding sodium salts of the component fatty acids.

i.e  Fat or oil + caustic alkali ⇒ Soap + propane-1,2,3-triol

As a specific example, ethyl acetate and NaOH react to form sodium acetate and ethanol:

The reaction goes to completion in the image below:

8 0
3 years ago
On hot days, you may have noticed that potato chip bags seem to "inflate", even though they have not been opened. If I have a 25
Slav-nsk [51]

The new volume of the bag will be 789.5 mL.

<u>Explanation:</u>

As per the Charles law, at constant pressure the volume of the gas is directly related to its temperature in Kelvin (K). That is as the temperature increases, the gas expands and vice-versa.

$\frac{V1}{T1} = \frac{V2}{T2}\\

V1 = 250 ml

V2 = ?

T1 = 19° C

T2 = 60° C

Now we have to rewrite the equation to get the new volume as,

V2 = $\frac{V1T2}{T1}

    =$\frac{250\times60}{19}

<em>     </em>= 789.47 ≈ 789.5 ml.

So the new volume of the bag will be 789.5 mL.

7 0
3 years ago
Other questions:
  • which orbital is the first to fill with electrons in a given principal with electrons in a given principal energy level
    11·1 answer
  • Protons are positively charged and repel other protons. Which order particle is found in the nucleus and separates protons so th
    6·1 answer
  • Which events occurred during the space race
    6·2 answers
  • What is Molecule made off?<br><br>a) Electrons<br>b) Protons<br>c) Atoms<br>d) Nuclei​
    11·2 answers
  • How do you find the highest energy level?
    10·1 answer
  • Write a CER to explain what happened to this styrofoam head. The pics are of the head above water, at a depth of 1000m underwate
    11·1 answer
  • A solid sample is hit with a hammer and breaks into jagged, irregular shards. What type of solid was it? A) molecular solid b) n
    7·1 answer
  • Chemical reactions differ from nuclear reactions in several important ways.
    8·1 answer
  • What pressure is exerted by 2.500 kg of oxygen gas (O2) stored at 22°C in a 40.0-L cylinder? (R = 0.08206 L • atm/K • mol)
    10·1 answer
  • 1.For the first ten reactions, write a balanced reaction for each tube in which a reaction occurred. If there was no reaction, w
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!