click below
click below
Normal Size Small Size show me how
Final Study Guide
Question | Answer |
---|---|
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 |