Question 1 A)How are acids and protons related? (1 point) Responses 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. An acid can accept a proton from a base when they react. Acids are substances that contain fewer protons than bases. Acids are substances that contain fewer protons than bases. Question 2 A)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 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. 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. Question 3 A) Use the reaction to answer the question. HCl + H2O → Cl–+ H3O+ Which statement about the reaction is correct? (1 point) Responses HCl is an acid, and H3O+ is its conjugate base. HCl 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. H2O is an acid, and H3O+ is its conjugate base. H 2 O is an acid, and H 3 O + is its conjugate base. Question 4 A)Which pattern in electronegativity do elements in the periodic table display?(1 point) Responses 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 decreases from left to right within a row of the periodic table. 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. Question 5 A)Which option correctly shows the concentration of H3O+ ions in pure water?(1 point) Responses 14 mol/L 14 mol/L 1.0 x 10-14 mol/L 1.0 x 10 -14 mol/L 7 mol/L 7 mol/L 1.0 × 10-7 mol/L

Answer 1

Here are the answers to the questions you've provided:

Question 1:
A) How are acids and protons related?
Correct Response: An acid can donate protons to a base when they react.

Question 2:
A) Which statement best describes the difference between a substance with a pH of 3.0 and a substance with a pH of 6.0?
Correct Response: The substance with the lower pH has 1,000 times as many hydrogen ions per volume of water.

Question 3:
A) Use the reaction to answer the question. HCl + H2O → Cl– + H3O+ Which statement about the reaction is correct?
Correct Response: HCl is an acid, and Cl– is its conjugate base.

Question 4:
A) Which pattern in electronegativity do elements in the periodic table display?
Correct Response: Electronegativity increases from left to right within a row of the periodic table.

Question 5:
A) Which option correctly shows the concentration of H3O+ ions in pure water?
Correct Response: 1.0 × 10^-7 mol/L.

Please let me know if you need further explanations or assistance!

Answer 2

explain how you got each answer in a short sentence

Answer 3

Sure! Here are brief explanations for each answer:

Question 1: An acid is defined as a substance that can donate protons (H⁺ ions) to a base, according to the Bronsted-Lowry theory.

Question 2: A difference of 3 pH units (from 3.0 to 6.0) corresponds to a 10^3 (or 1,000) times difference in hydrogen ion concentration, since pH is a logarithmic scale.

Question 3: In the reaction, HCl donates a proton to water, forming the hydronium ion (H₃O⁺), while Cl⁻ is the conjugate base of HCl after it donates that proton.

Question 4: Electronegativity increases across a period from left to right due to increasing nuclear charge, making it easier for elements to attract electrons.

Question 5: The concentration of H₃O⁺ ions in pure water at 25°C is 1.0 × 10⁻⁷ mol/L, as water self-ionizes into equal amounts of H₃O⁺ and OH⁻.

If you need more information or context for any of these explanations, feel free to ask!