CHEMISTRY HIGH SCHOOL

Any substance that yields a hydrogen ion when placed in a water solution is called a(n) _____. acid
base
hydronium ion
hydroxide ion

Answers

Answer 1
Answer:

Answer : Option A) Acid


Explanation : Any substance that yields a hydrogen ion when placed in a water solution is called an acid.


According to Arrhenius theory of Acids and Bases, Acids are those substances which on dissociation in solution generates ions. Whereas a Base is a substance that dissociates in the solution to produce ions.

Answer 2
Answer:

Answer:

the answer is acid.

Explanation:


Related Questions

HIGH SCHOOL

Which of the following describes an element that is reduced in a reaction? It acts in the reactant that is the reducing agent. It has a decrease in its oxidation number. Cd yields Cd2+ + 2e− Zn + Cu2+ yields Zn2+ + Cu

Answers

It has a decrease in oxidation number

The process of reduction is when the oxidation number of a chemical specie is lowered, or when the specie gains electrons. A chemical specie undergoing reduction will act as an oxidizing agent, because it will oxidize the other reactant by itself getting reduced.
HIGH SCHOOL

If a red blood cell is 100% saturated, how many molecules of O2 are bound to it?1 billion molecules of O24 molecules of O2250 million molecules of O2?

Answers

Answer:

1 billion molecules O₂

Explanation:

From my research, a human red blood cell contains approximately 270 million hemoglobin molecules.    

A hemoglobin molecule contains four heme groups, each of which has an iron ion forming a coordination complex that carries every dioxygen molecule. Therefore for each hemoglobin molecule, we will have 4 dioxygen molecules. The heme groups are responsible for the transport of every dioxygen and other diatomic gases.                    

Hence, the number of O₂ molecules in a red blood cell saturated with 100% will be:                

So, the correct answer is 1 billion of O₂ molecules.  

Have a nice day!

MIDDLE SCHOOL

How is the use of hydroelectric power related to the sun

Answers

We can relate the hydroelectric power with sun one the basis of hydrologic cycle.

The solar energy obtained from sun heats up water on earth (oceans) and evaporates it. This water condense into clouds. The clouds precipitate out water in the form of rain or snow. This snow remains on mountains and thus solar energy is responsible for the potential energy of water on mountains which is then converted to kinetic energy and this is used as hydroelectric power.

The water present on mountains in rivers or as snow reach back to oceans and this is how the cycle completes known as hdrologic cycle.


HIGH SCHOOL

Which of the following features is common to both acids and bases? A. ability to burn skin B. similar taste C. pH measurements greater than 7 Reset Submit

Answers

Answer:

            Correct Option-A (Ability to burn skin)

Explanation:

                    When skin tissues are exposed to Acids or Bases a chemical burn occurs as both of these substances are corrosive in nature. These burns occur without providing any heat, results from a very fast reaction, are extremely painful and causes damage to structures present under skin.

                    Option-B is incorrect because Acids taste sour, while, Bases taste bitter.

                    Option-C is incorrect because pH of Acids is less than 7 while, pH of Bases is greater than 7.

Answer:

A. Ability to burn skin.

Explanation:

A chemical burn occurs when living tissue is exposed to a corrosive substance such as a strong acid or base. Chemical burns follow standard burn classification and may cause extensive tissue damage. ... diffuse into tissue and damage structures under skin without immediately apparent damage to skin surface. Welcome.

HIGH SCHOOL

Write the isotope notation and word form for the isotope of neon that has an atomic mass of 22.

Answers

The right answer is , Neon 22.

The second rare gas in the periodic table, neon, has an atomic number of 10, it gave its name to neon tubes and to a variety of fluorescent tubes.

Neon has three stable isotopes, 20Ne (the most abundant), 21Ne, and 22Ne, and a standard atomic mass of 20,1797 u.

COLLEGE

A weak acid is titrated with a strong base. which could be the ph of the equivalence point of the titration? ph = 7.0 ph = 8.4 ph = 5.8 description

Answers

Hello!

The pH at the equivalence point should be pH=8,4

The reason is the following:

When a weak acid (HA) is titrated with a strong base (BOH), the neutralization reaction is the following:

HA + BOH → BA + H₂O

At the equivalence point, only BA is present, but A⁻, being the conjugate base of a weak acid, dissociates in the following way:

A⁻+H₂O⇄HA + OH⁻

The OH⁻ ions generated will make this solution to be basic, so the pH should be 8,4

Have a nice day!

MIDDLE SCHOOL

Why is it incorrect to say that the Molar Mass of H2 is 1 g/mole? Be specific!!

Answers

About 2.02g. Take the mass of one hydrogen (atomic mass is the same as the molar mass in grams) and multiply by 2.

HIGH SCHOOL

What are the two types of dichotomous keys. Which is easier to use?

Answers

I think the two are text and pictorial.
MIDDLE SCHOOL

Think about a wooden chair and a balloo. What do these two objects always have in common

Answers

A. Both are made of atoms.
These two objects are both solid, but a special thing about these two objects that they have in common is that they are both materials that are really poor conductors of electricity.
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