Substances, elements, etc...
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A substance made of only one chemical is called... | A pure substance
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| A substance made of only one atom is called... | An element
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| A substance made up of more than one kind of atom chemical bonded together is called... | A compound
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| A substance made up of two or more elements not bonded together is called... | A mixture
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| A substance made up of two or more compounds not bonded together is called... | A mixture
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| A substance made up of elements and compounds not bonded together is called... | A mixture
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| Is butter a pure substance or a mixture? | Mixture (fats, waters, etc.)
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| Is air a pure substance or a mixture? | Mixture (oxygen, nitrogen, etc.)
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| Is water a pure substance or a mixture? | Pure substance (compound)
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| Is gold foil a pure substance or a mixture? | Pure substance (element)
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| Is glass a pure substance or a mixture? | Pure substance (compound) (but reinforced glass is a mixture w/ boron)
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| Is wood a pure substance or a mixture? | Mixture (fibers and stuff)
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| Is grass a pure substance or a mixture? | Mixture (fibers and stuff)
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| Is carbon an element or a compound? | Element (on periodic table)
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| Is aluminum foil an element or a compound? | Element (on periodic table)
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| Is plastic an element or a compound? | Compound (not on table)
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| Is tin an element or a compound? | Element (on periodic table)
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| Is carbon dioxide an element or a compound? | Compound (carbon + oxygen)
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| Is helium an element or a compound? | Element (on periodic table)
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| Is arsenic an element or a compound? | Element (on periodic table)
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| Is sodium chloride an element or a compound? | Compound (stuff + stuff)
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| What is the difference between a compound and a mixture? | A compound is chemically bonded (shares electrons) while a mixture is not (just atoms crammed in together)
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| Is alphabet soup a pure substance or a homogenous/heterogeneous mixture? | Heterogeneous (you can see the noodles separate)
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| Is salt a pure substance or a homogenous/heterogeneous mixture? | Pure substance (NaCL) (but table salt can be different because of iodine and drying agents)
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| Is concrete a pure substance or a homogenous/heterogeneous mixture? | Homogeneous (concrete w/ rocks is heterogenous though)
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| Is vegetable oil a pure substance or a homogenous/heterogeneous mixture? | Homogeneous (all looks like one thing of syrup)
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| Is air a pure substance or a homogenous/heterogeneous mixture? | Homogeneous (all looks the same except with pollen, etc.)
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| Is paint a pure substance or a homogenous/heterogeneous mixture? | Homogeneous if latex, heterogeneous if oil
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| Is sea water a pure substance or a homogenous/heterogeneous mixture? | Heterogeneous (you can see the sand floating in it)
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| Is granite a pure substance or a homogenous/heterogeneous mixture? | Heterogeneous (that's why it looks all flecked, etc.)
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| Is steel a pure substance or a homogenous/heterogeneous mixture? | Homogeneous (it's an alloy; iron is the element)
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| Is sugar a pure substance or a homogenous/heterogeneous mixture? | Pure substance (it has a formula but I'm not looking it up...)
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| How could a mixture appear homogeneous when you look at it, but actually be heterogeneous? | If it separates over time (settling) when freshly stirred, it may look like one material, but in a few minutes/hours/days it'll look completely different.
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| Which of the types of matter can vary in composition between samples? | Only mixtures can vary, because pure substances, compounds and elements all have the same ratios of elements in order to still be considered part of the original material.
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| What kind of changes can be used to separate mixtures? | Physical
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| What kind of changes can be used to separate compounds? | Chemical
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| What kind of changes can be used to separate elements? | Nuclear
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| Is water boiling a chemical or physical change? | Physical: Phase (L to G)
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| Is dry ice sublimating a chemical or physical change? | Physical: Phase (S to G)
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| Is a goose roasting a chemical or physical change? | Chemical: Color, Gas
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| Is a candle burning a chemical or physical change? | Chemical: Light, Gas
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| Is salt dissolving in water a chemical or physical change? | Physical: Shape/Phase (S to L)
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| Is TNT exploding a chemical or physical change? | Chemical: Light, Gas
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| Is cider fermenting a chemical or physical change? | Chemical: Color, Gas
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| Is an ice cube melting a chemical or physical change? | Physical: Phase (S to L)
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| Is oil burning a chemical or physical change? | Chemical: Gas, Light
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| Is food being digested a chemical or physical change? | Chemical: Color...
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| Is a nail being magnetized a chemical or physical change? | Physical: Well...not chemical...
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| Is gasoline evaporating a chemical or physical change? | Physical: Phase (L to G)
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| Is sodium bicarbonate fizzing in acid a chemical or physical change? | Chemical: Gas
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| Is milk turning into yogurt a chemical or physical change? | Chemical: Precipitate
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| Is wood rotting a chemical or physical change? | Chemical: Color, Gas (?)
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| Is metal being heated red-hot a chemical or physical change? | Physical: Phase (S to L)
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| Is iron rusting a chemical or physical change? | Chemical: Color
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| Is a tablet being crushed into powder a chemical or physical change? | Physical: Shape
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| Are leaves changing color a chemical or physical change? | Chemical: Color
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| Is brass tarnishing a chemical or physical change? | Chemical: Color
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| Is alcohol vaporizing a chemical or physical change? | Physical: Phase (L to G)
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| Is liquid butter solidifying a chemical or physical change? | Physical: Phase (L to S)
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| Is iodine dissolving in hexane a chemical or physical change? | Physical: Solution?
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| Is jello gelling a chemical or physical change? | Physical: Phase (L to S)
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| Is glass breaking a chemical or physical change? | Physical: Shape
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| Is grain being ground into flour a chemical or physical change? | Physical: Shape
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| Is silver blackening a chemical or physical change? | Chemical: Color
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