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Final Study Guide

QuestionAnswer
What is the formula for density? density = mass /volume
What is the density of a substance whose mass is 52 grams and whose volume is 16 mL? 3.25
What is the definition of solid? matter with a fixed volume and shape
What is the definition of liquid? a state of matter with a defined volume but no defined shape
What is the definition of covalent bonds? a chemical link between two atoms that share electrons
Particles in a gas move _____ than liquids and solids faster
Particles in solids move _____ than liquids and gasses slower
How many electrons are needed in the outer energy level (valence electrons) for atoms to be stable?
What would the correct product be after the equation was balanced? ____Ca + ___ O2  ___ CaO
What is the definition of catalyst? substance that increases the rate of a chemical reaction by lowering the amount of energy needed for the reaction to occur
What is the definition of law of conservation of mass? a fundamental principle of science stating that mass cannot be created or destroyed in a closed system through ordinary chemical or physical means
If you have 5 atoms of oxygen before a reaction, you must have ___ atoms of oxygen after a reaction. 5
What are the signs of chemical reactions?
How to calculate the frequency of a sound wave using the formula?
What is the definition of amplitude? height or "strength" of a wave
How to calculate Kinetic Energy?
What is the definition of a series circuit?
What is the definition of an insulator? a material that does not readily conduct electricity or heat
What is the definition of alternating circuit?
.The slower the wave, the longer the ____________ wavelength
What is the definition of a parallel circuit? an electric circuit with multiple paths through which current can flow
Created by: kana100