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59 Cards in this Set
- Front
- Back
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What is mass a measurement of? |
the amount of atomic material a system is composed of |
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What does a "heavy" system mean in comparison to a "light" one? |
the heavy one has more atomic material |
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What are the only magnetic metals |
iron, cobalt, and nickel |
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What two things can matter be? |
A pure substance or a mixture |
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What is a pure substance called? |
homogeneous |
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What is a mixture called? |
heterogeneous |
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Which are one of a kind? |
pure substances/homogeneous |
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What makes them one of a kind? |
They cannot be replicated or duplicated, they are unique |
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The only subcategories of a pure substance/homogeneous are what? |
compound and element |
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What is a compound? |
A combination of 2 or more elements |
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What is interesting about solid and liquid water? |
Water is the only element that liquid form is more dense than solid form |
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Describe the properties of compounds and elements |
they have distinct properties which will never be absent or missing |
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Describe the construction of mixtures |
they have variety and variability, they have differences in construction |
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What is an example of a mixtrure |
salad, there are many different types with different ingredients in each |
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What are the two types of mixtures |
heterogeneous and homogeneous |
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an example of heterogeneous mixtures |
pepperoni pizza because you can see that ingredients appear different |
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describe homogeneous mixtures |
Always appear the same no matter what and uniform, so well blended appears to be one |
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example of a homogeneous mixture |
14k gold, gasoline |
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What are pure substances/homogeneous represented by? |
symbol/chemical formula |
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What is the difference between a compound and homogeneous mixture |
Compounds combine by a chemical reaction, homogeneous mixtures don't |
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What is atomic mass measured in |
Amu or u |
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What is the number on top of the element in the period table and what does it stand for? |
Atomic number, it is an identification number |
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What are three letter symbols used for? |
They are given to newly discovered elements before we have a definite name for them |
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What are elements in the periodic table arranged by? |
Atomic number |
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How many rows are in the the periodic table and what are they called |
7 rows called periods, series, or energy levels |
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How many vertical columns are there and what are they called |
18 vertical columns called groups, families, or columns |
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What are the three categories of elements |
Metals, non metals, semi metals |
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Why are there two rows of elements below the rest of the chart |
They belong inside the chart, but they wouldn't fit on a normal piece of paper |
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Atoms that don't atomic mass with decimals are what? |
Radioactive |
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What does radioactive mean |
Unstable, will disintegrate |
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Give the Actual name and latin term for Cu |
Copper, Cuprum |
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Give the actual name and latin term for Fe |
Iron, Ferrum |
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Give the actual name and latin term for Pb |
Lead, Plumbum |
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Give the actual name and latin term for Sn |
Tin, Stannum |
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What state of matter are metals at room temp? |
Solid |
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What is room temperate |
25 degrees Celsius |
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What are metals good conductors of? |
Heat and electricity |
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What are the five properties of metals? |
Ductile malleable tensile luster and sonorous |
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How many nonmetals are there |
17 |
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Which 5 nonmetals are solid at room temp |
B (Boron), C (carbon), P (phosphorous), S (sulfur), and I (iodine) |
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Which nonmetal is liquid at room temp |
Br (Bromine) |
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What are the 11 remaining that are gases |
H (hydrogen), N (nitrogen), O ( oxygen), F (fluorine), Cl (chlorine), He (helium), Ne (neon), Ar (arsenic), Kr (krypton), Xe (xenon), and Rn (radon) |
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Describe the properties of metalloids |
They fall in between those of both metals and nonmetals |
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How many metalloids are there and name them |
Si (silicon), Ge (germanium), As (Arsenic), Sb (Antimony), Te (tellurium), Se (selenium) |
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How many elements are made up of free standing individual atoms |
109 |
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What language does the word atom come from and what do they define it as |
Greek, means to stand alone, free-standing, individual, singular |
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What do the atoms that aren't free standing exist as |
Molecules in their pure state in grouping of 2 or more, due to stability |
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Which are diatomic |
H, O, N, F, Cl, Br, I |
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Which are polyatomic and how many atoms do they have in each molecule |
S (sulfur) has 8, and P (phosphorous) has 4 |
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What happens to the properties of elements when they become compounds |
They lose all their properties |
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What is the only way compounds can be broken down? |
By chemical reaction |
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What are the two types of compunds |
Molecular and ionic |
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What are molecular |
They are never metals, the combine a nonmetallic with a nonmetal or metalloid |
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What are ionic |
Combination of metal and nonmetal |
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Define the law of definite composition |
The makeup of a compound is always specific and certain, the same elements must combine to form a particular compound and in fixed amounts |
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How are mixtures blended |
Physically, never through chemical reaction |
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What is another word for a homogeneous mixure |
Solution |
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How can you tell if a mixture is homogeneous or heterogeneous |
Homogeneous do not settle, heterogeneous will separate |
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How are heterogeneous mixtures blended |
You can see at least one ingredient with the naked eye |
