Answers To Question For Whole Course Concept Map (Four Basic Principles)

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The following are answers to questions from Question for Whole Course Concept Map (Four Basic Principles).

1) All substance are composed of particles (base units) that are in constant motion and sometimes interact/collide.
2a) Law of Conservation of mass
Book def. - mass is neither created nor destroyed, in a physical/chemical change.
What it means: must account/keep track of all the mass in a system.

2b) Law of Conservation of Energy
Book def. - energy is neither created nor destroyed, in a physical/chemical change.
What it means: must account/keep track of all the energy in a system.

3) the charges of two particles and how they interact. Same charged particle REPEL, different charged particle ATTRACT

4) When two particles collide and rearrange into NEW grouping, it is a chemical change (called chemical reaction).

When two particle collide and DO NOT rearrange and stay in same groupings, it is a physical change (called a physical process).

5a) Rearrange what makes up particles (i.e. chemical change/reaction)- dealing with Intramolecular forces
5b) No rearrange of base particles (i.e. physical change/process) - dealing with Intermolecular Forces

6) Intramolecular Forces usually has more energy than Intermolecular Forces


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Last edited September 14, 2021 4:46 am (diff)
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