Chemistry Unit - Basic
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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| Atom | Atoms are the basic building blocks of the universe. Made up of protons, neutrons and electrons.
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| Matter | Anything that has mass and takes up space. All matter is made up of atoms.
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| Subatomic Particles | Atoms are made of 3 smaller parts: protons, neutrons, electrons
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| Proton | Protons are the subatomic particles that have a positive charge.They are found in the nucleus.
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| Neutron | Neutrons are the subatomic particles that have no charge(neutral charge). They are found in the nucleus
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| Electron | Electrons are the subatomic particles that have a negative charge. They are extremely small and circle around the nucleus in different energy levels. Determines whether the atom will react.
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| Nucleus | The center of the atom containing the Protons and Neutrons is called the Nucleus
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| Electron Shell/Energy Level | The electrons circle around the nucleus in different pathways called “shells" or "energy levels".
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| Atomic Number | Tells you how many protons the atom has. Atoms must have equal number of protons and electrons.
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| Atomic Mass | Tells you the average mass of the nucleus of the atom which contains both Protons and Neutrons, NOT electrons.
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| 2n^2 Rule | Tells you the maximum number of electrons in each energy level is the 2n2 Rule where n = the number of the energy level.
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| Bonds | Two or more atoms share or transfer electrons to become stable. When electrons do this the atoms are said to be bonded together
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| Octet Rule | Atoms are stable if they have 8 electrons in their outermost energy level
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| Compound | The atoms in the molecule are all different (example, C02) .
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| Molecule | Atoms of the same element that are bonded together form molecules .
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| Chemical Reaction | Making and/or breaking bonds. When these bonds break, energy is released. Living organisms get their energy from bonds breaking in chemical reactions.
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| Enzymes | Protein molecules that speed up chemical reactions. Also known as Catalysts.
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| Lock and Key Model | The enzyme and substrate must fit together to work. Key (substrate) and Lock (enzyme)
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| Chemical Equation | Shows the atoms or molecules that you begin with and will react
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| Reactant | The atoms that undergo a chemical reaction. These are to the left of the arrow in a chemical equation
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| Product | Shows what is made in the chemical reaction. These are to the right of the arrow in a chemical equation.
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| Yields | The arrow in a chemical equation that separates the reactants from the products.
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| Ions | Atoms with a positive or negative charge
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| Acids | compounds that form H+ (hydrogen ions) in a solution. Below 7 on pH scale
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| Bases | compounds that work OH- (hydroxide ions) in solution. Above 7 on pH scale
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| pH Scale | A scale that goes from 0-14 that measures the strength of acids and bases
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| Indicator | A substance that shows the presence or concentration of a certain substance
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| Chemistry | The study of matter and how it changes.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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