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| What are the 3 states of matter? |
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| indefinite shape but a definite volume |
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| Definite shape and definite volume |
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| Matter turns from solid to gas |
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| Matter turns from gas to solid |
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| Matter turns from gas to liquid |
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| Matter turns from liquid to gas |
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| Matter turns from solid to liquid |
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| Matter turns from liquid to solid |
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| Something that occupies space and has a mass |
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a type of change in which the form of matter is altered but one substance is not transformed into another.
ex: Water to Ice |
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process where one or more substances are altered into one or more new and different substances
chemical reaction |
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| Things that can be measured without chemically changing the substance, Color, shape, volume, weight, texture, etc. |
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| Observed when a substance undergoes chemical change, iron rusting, gasoline burning, etc |
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| The building blocks of all matter. They are one thing and cannot be broken into a simpler substance |
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| Combination of 2 or more elements in a FIXED ratio. Written in formulas like H2O, and CO2 |
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| Combination of 2 or more substances in NO FIXED RATIO |
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Uniform properties throughout (one can see no irregularities)
Ex: Salt water- salt dissolves in water, leaves little sign it's there |
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Does not have uniform properties throughout
Ex: Sand in water, sand sinks to the bottom and doesn't dissolve |
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| Process that absorbs energy |
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| Process that gives off energy |
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| Law of Conservation of Mass/Energy |
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| Mass/Energy is neither created nor destroyed through a chemical/physical change |
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| Stored energy - log, or gasoline that can be burned for energy |
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| Significant Figures- 81.59 How many Sig Figs? Why? |
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| 4 because all non-zero numbers are significant |
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| 1.040 How many Sig Figs? Why? |
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| 4 because zeros between numbers are significant |
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| 8.740 How many sig figs and why? |
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| 4 because zeros after a decimal are significant |
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| Used to show how far numbers are carried out, and how specific the number is. |
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| Rounding Rules- Multiplication and Division |
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| The least number of sig figs used in calculation are the number of sig figs reported in an answer |
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| Rounding Rules- Addition/subtraction |
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| The last common place w/ a sig fig used in the calculation is the last place with sig figs recorded in the answer |
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| Put 0.00023 in Scientific notation |
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| Put 5.7x10^-5 in standard notation |
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| Formula for converting Celsius to Fahrenheit |
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| Formula for finding Kelvin |
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| Atoms are made of SUBATOMIC PARTICLES, the proton, neutron, and electron. The proton and neutrons are packed into the nucleus of an atom |
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| Positively charged particle (+) |
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| negatively charged particle |
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| Contains protons and neutrons, and has a positive charge. It is also the mass of the Atom |
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| 99.9% of the volume of an atom |
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| The top number, and the number of protons and neutrons |
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| How does one find the number of neutrons |
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| Mass Number- Atomic Number |
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| The bottom number, and it is the number of protons in an atom |
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How Many Neutrons?
[image] |
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What is the Mass Number?
[image] |
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