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Science Concepts and Evidence

Grade 10 · Building confidence · 8 questions · Version PG-1MZZ8TD-1RJY

1.

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

2.

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

3.

What does an atomic number count?A. Protons B. 6.022 x 10^23 particles C. Atoms of one element with different neutron counts D. An acidic solution

4.

What is a mole?A. It increases B. Covalent bond C. 6.022 x 10^23 particles D. An acidic solution

5.

What type of bond shares electrons?A. Ionic bond B. An acidic solution C. Protons D. Covalent bond

6.

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

7.

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

8.

What happens to reaction rate when temperature usually rises?A. Atoms of each element B. Covalent bond C. An acidic solution D. It increases

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

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.