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45 Cards in this Set
- Front
- Back
matter |
anything that has mass and occupies space |
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energy |
the capacity for doing work or producing heat |
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mass |
a measure of the amount of matter that an object contains |
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volume |
a measure of the space occupied by a sample of matter |
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qualitative observation |
an observation uses five senses |
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quantitative observation |
observations made with instruments such as rulers, balances, granulated, etc. |
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hypothesis |
aproposed explanation made on limited evidence |
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mixture |
two or more substances physically mixed |
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pure substances |
substances that are made of one atom/molecule |
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heterogeneous mixture |
mixture consists of visibly different substances |
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homogeneous mixture |
has same uniform appearance |
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element |
substance consisting of atoms which all have the same number of protons (simplest substance can not be broken down) |
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compound |
mixture, consist of two or more separate elements |
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physical property |
can be observed or measured without changing composition of matter |
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chemical property |
any of a material's property that becomes evident during/after chemical reaction |
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physical change |
affects the form of chemical reaction |
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chemical change |
results in formation of new chemical |
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distillation |
purifying a liquid by heating or cooling |
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chromatography |
separation of mixture by passing it in solution as a vapor through a medium in which the components move at |
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filtering |
pass substance through a device to remove unwanted material |
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evaporation |
a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase |
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density |
is mass per unit volume |
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periodic trends |
arising from the arrangement of the periodic table, provides a tool to quickly predict an element's properties |
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signs of chemical reaction |
- color - formation of bubbles |
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glass of milk |
homo |
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idine |
element |
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magnesium chloride |
compound |
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oatmeal |
hetero |
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salad |
hetero |
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aluminum |
element |
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sugar |
compound |
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rubbing alcohol |
homo |
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red color |
P |
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floating |
P |
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flammability |
C |
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conducting electricity |
P |
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reactivity |
C |
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boiling point |
P |
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smell |
P |
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hardness |
P |
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salt dissolving in water |
P |
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vinegar and baking soda react |
C |
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rust |
C |
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milk going sour |
C |
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copper wire conducts electricity |
P |