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Statements true or false.
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Let's start from the first one.
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One, ionic bonds are between two metals.
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Now, this is a false statement.
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It's usually between a metal and a nonmetal, not two metals.
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So, for example, sodium and chloride, they produce sodium chloride.
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There's an ionic bond between sodium and chloride.
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Sodium is a metal and chloride is a nonmetal.
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Second, all ionic bonds are polar.
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Now this statement is true.
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Ionic bonds usually involve in transfer of the electron.
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As you can see that the previous equation or reaction, the electron is being transferred from the chloride to sodium because it involves the charge transfer.
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Transfer, and obviously they are actually polar.
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Whenever you have a charge, it's obviously polar.
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The third statement, ionic bonds are also known as salts.
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This statement is true.
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Ionic compounds are often referred to as salts, which is between one metal and one nonmetal.
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The fourth statement, water is a polar covalent molecule.
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Now this statement is also true.
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True.
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It's covalent because you have oxygen and hydrogen and they share a pair of electrons.
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So this is why it's covalent.
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So you can see that they share electrons.
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However, because oxygen has more electron negativity, the electrons are being drawn towards the oxygen.
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So this is it has more electron negativity and therefore the pair of electrons are not shared equally and then this cause it to be polar so water is both polar which means the i and the electron are not fairly shared evenly shared and it's covalent because they share a pair of electrons.
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Number five, all salts are soluble in water.
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This statement is false.
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A lot of salts are actually precipitate.
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They have very low low solubility in the water.
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For example, calcium carbonate.
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So this is a salt because it have a carbonate, this salt is not soluble in water.
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So this is an exception.
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And there's some other exceptions that salts are insoluble in water...