How are acids and protons related? (1 point)
Responses
Acids are substances that contain fewer protons than bases.
Acids are substances that contain fewer protons than bases.
Acids are substances that contain more protons than bases.
Acids are substances that contain more protons than bases.
An acid can donate protons to a base when they react.
An acid can donate protons to a base when they react.
An acid can accept a proton from a base when they react.
9 answers
An acid can accept a proton from 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?(1 point)
Responses
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 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 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 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
Responses
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 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 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 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
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?
(1 point)
Responses
H2O is an acid, and H3O+ is its conjugate base.
H 2 O is an acid, and H 3 O + is its conjugate base.
H2O is an acid, and Cl– is its conjugate base.
H 2 O is an acid, and Cl – is its conjugate base.
HCl is an acid, and Cl– is its conjugate base.
HCl is an acid, and Cl – is its conjugate base.
HCl is an acid, and H3O+ is its conjugate base.
HCl + H2O → Cl–+ H3O+
Which statement about the reaction is correct?
(1 point)
Responses
H2O is an acid, and H3O+ is its conjugate base.
H 2 O is an acid, and H 3 O + is its conjugate base.
H2O is an acid, and Cl– is its conjugate base.
H 2 O is an acid, and Cl – is its conjugate base.
HCl is an acid, and Cl– is its conjugate base.
HCl is an acid, and Cl – is its conjugate base.
HCl 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?(1 point)
Responses
Electronegativity is lowest on the left and right sides of the periodic table, and highest 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 is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
Electronegativity is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
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.
Electronegativity decreases from left to right within a row of the periodic table.
Responses
Electronegativity is lowest on the left and right sides of the periodic table, and highest 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 is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
Electronegativity is highest on the left and right sides of the periodic table, and lowest in the middle of a row.
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.
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.
Which option correctly shows the concentration of H3O+ ions in pure water?(1 point)
Responses
1.0 x 10-14 mol/L
1.0 x 10 -14 mol/L
14 mol/L
14 mol/L
1.0 × 10-7 mol/L
1.0 × 10 -7 mol/L
7 mol/L
Responses
1.0 x 10-14 mol/L
1.0 x 10 -14 mol/L
14 mol/L
14 mol/L
1.0 × 10-7 mol/L
1.0 × 10 -7 mol/L
7 mol/L
1.0 × 10-7 mol/L
1 answer