Podcast
Questions and Answers
What is an ion?
What is an ion?
- A molecule with covalent bonds
- An atom that has lost or gained one or more electrons (correct)
- A compound involving metal atoms only
- A substance made of a unique kind of atom
In which type of compound are electrons typically shared between non-metal ions?
In which type of compound are electrons typically shared between non-metal ions?
- Ionic compounds
- Covalent compounds (correct)
- Polyatomic compounds
- Diatomic compounds
What happens in an exothermic reaction?
What happens in an exothermic reaction?
- Energy released from bond formation is less than the energy required to break the bonds (correct)
- Only metal atoms are involved in the reaction
- More energy is required to break the bonds than released during bond formation
- No energy changes occur during the reaction
Which of the following is NOT a way to increase a reaction rate?
Which of the following is NOT a way to increase a reaction rate?
What does the law of conservation of mass state?
What does the law of conservation of mass state?
Explain the difference between an exothermic and endothermic reaction in terms of energy released or required.
Explain the difference between an exothermic and endothermic reaction in terms of energy released or required.
What are the four ways to increase the rate of a reaction?
What are the four ways to increase the rate of a reaction?
Define what ionic compounds are and explain how they differ from covalent compounds.
Define what ionic compounds are and explain how they differ from covalent compounds.
List the seven diatomic elements and provide an example of a polyatomic element.
List the seven diatomic elements and provide an example of a polyatomic element.
Explain the concept of mass conservation in chemical reactions.
Explain the concept of mass conservation in chemical reactions.