How are acids and protons related?
An acid can donate protons to a base when they react.
Acids are substances that contain fewer protons than bases.
An acid can accept a proton from a base when they react.
Acids are substances that contain more protons than bases.
An acid can donate protons to a base when they react.
Which statement best describes the difference between a substance with a pH of 3.0 and a substance with a pH of 6.0?
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the higher pH has 1,000 times as many hydrogen ions per volume of water.
The substance with the higher pH has twice as many hydrogen ions per volume of water.
The substance with the lower pH has twice as many hydrogen ions per volume of water.
The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.
Use the reaction to answer the question.
HCl + H2O → Cl–+ H3O+
Which statement about the reaction is correct?
HCl is an acid, and Cl– is its conjugate base.
H2O is an acid, and Cl– is its conjugate base.
HCl is an acid, and H3O+ is its conjugate base.
H2O is an acid, and H3O+ is its conjugate base.
HCl is an acid, and Cl– is its conjugate base.
Which pattern in electronegativity do elements in the periodic table display?
Electronegativity is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
Electronegativity is lowest on the left and right sides of the periodic table, and highest in the middle of a row..
Electronegativity decreases from left to right within a row of the periodic table.
Electronegativity increases from left to right within a row of the periodic table.
Electronegativity increases from left to right within a row of the periodic table.
Which option correctly shows the concentration of H3O+ ions in pure water?(1 point)
Responses
1.0 × 10-7 mol/L
1.0 × 10 -7 mol/L
7 mol/L
7 mol/L
14 mol/L
14 mol/L
1.0 x 10-14 mol/L
1.0 x 10-7 mol/L
The correct answer is:
An acid can donate protons to a base when they react.
Acids and protons are related because acids are substances that have the ability to donate protons to a base during a chemical reaction. Acids are often defined as proton donors. When an acid reacts with a base, it transfers its proton to the base. This transfer of protons is what characterizes acid-base reactions.
To determine which of the options is correct, it's helpful to understand the concept of acids and bases. Acids are substances that release hydrogen ions (H+) when dissolved in water. These hydrogen ions are essentially protons. Bases, on the other hand, are substances that can accept protons or donate pairs of electrons.
In an acid-base reaction, the acid donates its proton to the base. This results in the formation of a conjugate base and a conjugate acid. The conjugate base is the species that remains after the acid loses its proton, while the conjugate acid is formed when the base accepts the proton.
Therefore, the correct statement is that an acid can donate protons to a base when they react.