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18 Cards in this Set
- Front
- Back
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The number of elements are
a. about 4 b. about 50 c. about 100 |
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The particle in the atom that is found outside the nucleus is the
a. electron b. proton c. neutron |
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An example of a physical property is
a. "this substance is blue" b. "this substance can burn" c. "this substance reacts with acid" |
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Lemonade is an example of
a. an element b. compound c. solution |
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Which of these is an example of a compound?
a. iron b. hydrogen c. rust |
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Sodium and chlorine con combine for form
a. bone b. salt c. water |
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The physical property that describes how much a substance will stretch or bend if
a. hardness b. elasticity c. magnetism |
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Ash is a new substance formed when
a. a fruit turns moldy b. pyrite comes in contact with acid c. wood is burned |
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When two or more atoms join together, they form a
a. combination b. model c. molecule |
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Knowing about chemical properties can help in identifying
a. protons and neutrons b. mixtures and solutions c.elements and compounds |
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Iron atoms combine with oxygen atoms to form
a. fool's gold b. rust c. ashes |
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periodic table
compound water vinegar solid liquid |
A chart that classifies elements by their properties is a ___________________
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An example of a change that is NOT a chemical change is
a. batter baked into a ckae b. cut apples turning brown in the air c. cucumbers tossed with lettuce for a salad |
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When the atoms of different elements combine to make a new substance, the substance is called a _________________
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A substance that acan be combines with baking soda to produce carbon dioxide is
______________ |
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An ice cube is a _____________
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H O is the symbol for ________
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A puddle of water is a _______
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