An __________ is a compound that increases the number of hydrogen ions when dissolved in water.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Texas Math and Science Coaches Association (TMSCA) Science Exam. Use flashcards and targeted quizzes to grasp key concepts. Each question comes with detailed explanations to enhance understanding. Empower your prospects in TMSCA Science today!

Multiple Choice

An __________ is a compound that increases the number of hydrogen ions when dissolved in water.

Explanation:
An acid is a compound that increases the number of hydrogen ions when dissolved in water. When acids dissolve, they release H+ ions (in water these become hydronium, H3O+), which raises the hydrogen ion concentration and makes the solution more acidic. Strong acids fully dissociate, while weak acids release some H+, but both types contribute more hydrogen ions than pure water. A base is the opposite—it increases hydroxide ions (OH-) in solution, which tends to reduce the hydrogen ion concentration. A salt dissolves into ions but isn’t defined by increasing hydrogen ions in the solution. A catalyst speeds up a reaction without changing the amount of hydrogen ions present as a defining feature.

An acid is a compound that increases the number of hydrogen ions when dissolved in water. When acids dissolve, they release H+ ions (in water these become hydronium, H3O+), which raises the hydrogen ion concentration and makes the solution more acidic. Strong acids fully dissociate, while weak acids release some H+, but both types contribute more hydrogen ions than pure water.

A base is the opposite—it increases hydroxide ions (OH-) in solution, which tends to reduce the hydrogen ion concentration. A salt dissolves into ions but isn’t defined by increasing hydrogen ions in the solution. A catalyst speeds up a reaction without changing the amount of hydrogen ions present as a defining feature.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy