Question

name: kinore bright dok 1 - recall & comprehension q1. what is a compound? a. a single element with a charge b. a substance made of two or more elements chemically combined c. a mixture of two or more substances physically combined d. a molecule containing only noble gases q2. what does the octet rule state? a. atoms are stable when they have 6 valence electrons b. atoms gain or lose protons to become stable c. atoms tend to gain, lose, or share electrons to have 8 in their outer shell d. atoms are always neutral in charge q3. what is the charge of a cation? a. negative b. positive c. neutral d. double negative q4. what is the correct name for co₂? a. carbon monoxide b. carbon dioxide c. carbon trioxide d. dicarbon oxide q5. how many electrons are shared in a double bond? a. 1 b. 2 c. 3 d. 4 dok 2 - skills & concepts q6. which of the following compares ionic and covalent compounds correctly?

Explanation:

• Q1: A compound is formed by the chemical combination of two or more elements.
• Q2: The Octet Rule states atoms gain, lose, or share electrons to have 8 in their outer shell.
• Q3: Cations are positively - charged ions.
• Q4: The formula $CO_2$ represents carbon dioxide.
• Q5: In a double bond, 4 electrons are shared.

Answer:

Q1. B. A substance made of two or more elements chemically combined
Q2. C. Atoms tend to gain, lose, or share electrons to have 8 in their outer shell
Q3. B. Positive
Q4. B. Carbon dioxide
Q5. D. 4