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Science Concepts and Evidence

Grade 10 · Building confidence · 8 questions · Version PG-59XFY1-1RJY

1.

What type of bond shares electrons?A. Covalent bond B. Atoms of one element with different neutron counts C. An acidic solution D. 6.022 x 10^23 particles

2.

What type of bond transfers electrons?A. An acidic solution B. 6.022 x 10^23 particles C. Atoms of each element D. Ionic bond

3.

What happens to reaction rate when temperature usually rises?A. Ionic bond B. Atoms of one element with different neutron counts C. It increases D. Protons

4.

What does pH below 7 indicate?A. Covalent bond B. 6.022 x 10^23 particles C. Atoms of each element D. An acidic solution

5.

What must a balanced chemical equation conserve?A. 6.022 x 10^23 particles B. Protons C. Atoms of each element D. Ionic bond

6.

What is an isotope?A. Protons B. Ionic bond C. It increases D. Atoms of one element with different neutron counts

7.

What is a mole?A. 6.022 x 10^23 particles B. It increases C. Atoms of each element D. An acidic solution

8.

What does an atomic number count?A. An acidic solution B. Covalent bond C. Protons D. 6.022 x 10^23 particles

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 17
  1. What type of bond shares electrons?Covalent bond
  2. What type of bond transfers electrons?Ionic bond
  3. What happens to reaction rate when temperature usually rises?It increases
  4. What does pH below 7 indicate?An acidic solution
  5. What must a balanced chemical equation conserve?Atoms of each element
  6. What is an isotope?Atoms of one element with different neutron counts
  7. What is a mole?6.022 x 10^23 particles
  8. What does an atomic number count?Protons

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.