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any charecteristic of matter that can be observerved without changing the identity of the mateirial |
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what do physical properties include |
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color shape smell taste mass volume density
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amount of mass in a given volume |
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what is the formula for density |
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what can density identify |
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whether a substance is a solid liquid or gasat a particular temperature and pressure |
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what are the two types of physical properties |
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size dependent and size independent |
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what does size dependent properties consist of |
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length width height volume and mass |
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what do sizeindependent properties consist of |
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what can matter be classified as |
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what has a sharp smell and sour taste |
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what feels slippery and has a bitter taste |
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what is the ph of the base |
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what does it mean to have a ph of exactly 7 |
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its water and it is not either an acid or a base |
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charecteristic of something that allows it to change to something new |
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what do chemical properties include |
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Definition
flamability toxicity and the ability to react with oxygen |
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what is an example of a chemical property of reactivity |
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when a half eaten apple turns brown in tha air |
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what has a lower reactivity than any other matals |
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what compounds change the chemical property of pool water |
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when water changes to more acidic what does it eliminate |
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algae bacteria and insects |
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standing water without any chlorine can become a breeding ground for which insect |
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what can make a pool unfit for swimming |
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plants algae and bacteria |
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more acidic chlorinated pools can also irritate what for swimmers |
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acids and bases both have chemical properties that make them both |
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acids can also do what to living organisms |
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tomato sauce reacts with what |
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what can acid rain damage |
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what is useful in industrys but burn skin |
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ammonia fumes can cause what |
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compounds made of matals and nonmetals and that are formed when acids and bases react |
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can be formed from a base of sodium hydroxide and hydrochloric acid |
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what are useful salts that are used for batteries |
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calcium carbonate or chalk and ammonia chloride |
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Term
any change in size shape form or state where the identity of the matter stays the same |
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what is an example of a physical change |
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cutting a watermelon into slices |
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what is a common physical change |
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wht are some changes in state |
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Definition
a.solid to liqiud/ice melting
b.liqiusdto solid/wter freezing
c.liqiud to gas/water boiling and creating steam
d.gas to liquid/water vopor condensing into water such as when dew forms |
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Term
one matierial changes into a different matierial with different properties or charecteristics |
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what are some examples of chemical changes |
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digestion photosynthesis paint drying and oil burning |
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in a chemical change what happens |
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a new matierial is formed that are different from the starting matierials |
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a chemical change can not be easily |
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what do the signs of a chemical change include |
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release of absorbtion of energy in the form of light heat or sound
formation of gas or solid
not from change of state
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leaves changing color indicate s a change in |
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what is a physical change that takes place in long period of times |
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chemical wethering can create |
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what is a form of unnatural chemicl change |
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