Conjugate acid base pairs
10th Grade
•25 Qs
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Conjugate acid base pairs
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Mostafa Kadda
Used 856+ times
FREE Resource
About this resource
This quiz focuses on acid-base chemistry, specifically Brønsted-Lowry theory and conjugate acid-base pairs, making it appropriate for 10th grade chemistry students. The questions assess students' understanding of fundamental acid-base concepts including the definitions of Brønsted-Lowry acids as proton donors and bases as proton acceptors, the identification of conjugate acid-base pairs that differ by a single H+ ion, and the relationship between pH values and acidic or basic solutions. Students need to master the core concept that conjugate pairs are related through proton transfer, understand how to identify acids and bases in chemical reactions, and recognize the mathematical relationships between pH, [H+], and [OH-] concentrations. The quiz also tests nomenclature skills for oxyacids and the ability to distinguish between strong and weak acids. To succeed, students must apply their knowledge of chemical formulas, understand the inverse relationship between hydrogen and hydroxide ion concentrations, and recognize patterns in acid-base reactions. Created by Mostafa Kadda, a Chemistry teacher in US who teaches grade 10. This comprehensive assessment serves multiple instructional purposes in the chemistry classroom, working effectively as a unit review before exams, formative assessment during instruction, or homework assignment to reinforce daily lessons on acid-base theory. Teachers can use individual questions as warm-up problems to activate prior knowledge or deploy the entire quiz to gauge student mastery before moving to more advanced topics like buffer systems or titrations. The varied question formats allow for differentiated assessment, while the progression from basic definitions to applied problem-solving mirrors effective pedagogical sequencing. This quiz aligns with standards including NGSS HS-PS1-5 (applying scientific principles to predict properties of substances based on molecular structure) and supports state chemistry standards that emphasize understanding chemical reactions, molecular interactions, and quantitative relationships in acid-base systems.
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the conjugate acid in the following equation?
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the conjugate base in the following reaction?
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is a Bronsted-Lowry acid?
Proton Donor
Proton Acceptor
Hydrogen Ion containing Compound
Hydroxide ion containing compound
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is an Bronsted-Lowry Acid?
LiOH
CO32-
OH-
H3PO4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How do Bronsted-Lowry conjugate acid-base pairs differ?
differ by one H+
Differ by one OH-
Differ by two H+
Differ by some number of H+
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following correctly identifies an acid-base pair?
HCl, NaOH
H2CO3 , CO32-
H3O+ , OH-
NH3, NH4+
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following correctly identifies an Acid-Base Pair?
HH4+ , OH-
H2O , OH-
CaCO3 ,CaCl2
HNO3 , H2SO4
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