CHEMISTRY TEST REVIEW

pH Atoms Bonding Water Vocab.

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FINAL JEOPARDY

Question for pH - $100

• What is the pH number for a neutral solution?

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• What is pH 7?

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Question for pH - $200

• This solution has a pH value level under 7

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• What is an acid?

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• A weak acid or base that reacts with a strong acid or base to change pH gradually is called this.

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• What is a buffer?

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• Solutions with a low H+ concentration and high OH- concentration are known as these.

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• What are bases?

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• If you were to mix a strong acid with a weak base you would have an end result of this.

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• What is a weaker acid?

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Question for Atoms - $100

• These are the three particles that make up an atom

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• What are protons, neutrons, and electrons?

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• An atom with 3 protons, 4 neutrons, and 3 electrons has this atomic mass

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• What is the atomic mass of 7?

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• The atomic number of an element with 8 protons, 9 neutrons, and 8 electrons is this

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• What is atomic number 8? (Oxygen)

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• This type of atom has the same number of protons and electrons but a different number of neutrons

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• What is an isotope?

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• The charge of an atom that has 17 protons, 17 neutrons, and 18 electrons is this

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• What is -1?

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Question for Bonding - $100

• This type of bond is when electrons are transferred

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• What is an ionic bond?

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• These electrons are available to bond and are on the outermost ring of an atom

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• What are valence electrons?

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• This type of bond is when 2 pairs of electrons are being shared (4 electrons total)

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• What is a double covalent bond?

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• This the charge of an atom when it loses an electron

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• What is a positive charge?

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• In order for NaCl to form an ionic bond, first each atom needs to do this

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• What is become an ion?

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Question for Water - $100

• This is the mass of a water molecule– Hint:

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• What is 18?

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Question for Water - $200

• This property of water is when water is attracted to itself

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• What is cohesion?

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• This atom in the water molecule creates a negative pole

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• What is Oxygen?

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• This property of water explains capillary action in plants

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• What is adhesion?

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• This characteristic of water explains why water easily creates hydrogen bonds since the molecule has an unequal distribution of charges

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• What is polarity?

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• This type of element has gained or lost an electron

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• What is an ion?

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• This is a substance that contains only one type of atom

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• What is an element?

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• Protons and neutrons can be found in this part of an atom

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• What is the nucleus?

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• The starting products of a reaction are called these

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• What are reactants?

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• This type of protein is a biological catalyst that can lower activation energy, speed up a reaction, and break down complex molecules

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• What is an enzyme?

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• Jell-O contains the protein gelatin in it that gives the gel like characteristic to Jell-O. If fresh pineapples are added to Jell-O it will not gel. Explain why you think this happen. What do you think is found in pineapples?

• Pineapples contain an enzyme that breaks down the protein gelatin, which causes the Jell-O to not gel.

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