Pysical Science Study Guide
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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| Which of the following is a compound? | salt
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| One molecule of SiO2 contains the following combination of atoms | 1 Si and 2 O
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| Which of the following could be used to compare the size of a toms in a model? | space-filling
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| There are strong bonds between the atoms in a piece of quartz. These bonds give quartz | high melting point
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| The attraction between molecules tends to be ___ the attraction between ions | weaker than
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| Which molecules are most strongly attracted to one another? | water molecules
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| Sugar has a lower melting point than salt because it's made of | molecules
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| Which of the following does NOT form crystal at room temperature | water
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| Which of the following is a mixture? | soil
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| A chemical formula shows | numbers and types of atoms
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| Atoms sometimes form bonds to | become more stable
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| Copper atoms are held together by___bonds | metallic
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| Sodium has one electron in it's outer shell and chlorine has 7 electrons in it's outer shell. The stoms will form a____bond by ___their electrons. | ionic,transferring
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| Oxygen atoms have six electrons in their outer shell. When two oxygen atoms bond, they will form a __bond by ___ their electrons. | covalent,sharing
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| Ionic bond | creates compounds with very high boiling points & positive and negative ions are formed
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| covalent bond | creates compounds with low boiling points & usually occurs between nonmetals
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| metallic bond | allows copper to bend and conducts electricity & formed by atoms in metals packing electrons close together
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| An ionic compound of calcium and chlorine would be named | calcium chloride
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| A covalent compound made of one sulfur and two oxygen atoms would be named | sulfur dioxide
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| An ionic compound made of copper (Cu2+)and oxygen would be named | copper (II)oxide
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| The covalent compound N2O5 would be named | dinitrogen pentoxide
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| Because the overall charge in a compound must be ___, the charge of iron in Fe2O3 can be calculated as 3+ | 0
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| in the compound Tio2, titanium has a charge of | 4+
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| The chemical formula for an ionic compound of aluminum and chlorine is | AICI3
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| The chemical formula for an ionic compound of potassium and oxygen | K2O
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| the ___ formula for a compound is written in the simplest whole number ratio of atoms | empirical
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| the chemical formula C6H12O6 would be the __ formula for glucose. | molecular, and chemical
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| all organic compound MUST contain | carbon
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| The atoms in organic molecules are held together by | covalent
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| the atoms of propane are held together by __ bonds. | single
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| a chemical formula with the pattern GnH2n+2 represent a(n) | alkane
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| Ethene differs from ethane in that it has a | both (a and b) b.) double bond
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| an alcohol MUST contain | -OH group
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| polypropylene would be called a __ because it contains a repeating pattern of propylene's. | polymer
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| a ___ is a polymer that contains any, different molecules of amino acids | protein
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| the polymer___ determine your genetic makeup. | DNA
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| a polymer of sugar molecules is called a(n) | carbohydrate
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