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Science Concepts and Evidence

Grade 10 · Building confidence · 8 questions · Version PG-5JX1N0-1RJY

1.

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

2.

What happens to reaction rate when temperature usually rises?A. It increases B. Protons C. 6.022 x 10^23 particles D. Covalent bond

3.

What does an atomic number count?A. Covalent bond B. Protons C. An acidic solution D. Ionic bond

4.

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

5.

What does pH below 7 indicate?A. An acidic solution B. It increases C. Atoms of each element D. Atoms of one element with different neutron counts

6.

What must a balanced chemical equation conserve?A. Ionic bond B. Covalent bond C. An acidic solution D. Atoms of each element

7.

What type of bond shares electrons?A. Covalent bond B. Atoms of each element C. Atoms of one element with different neutron counts D. An acidic solution

8.

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

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

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.