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27 Cards in this Set
- Front
- Back
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Nucleus |
Strong forces bind protons and neutrons together to form the nucleus, at the center of the atom |
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Electron |
The electron is a negatively charged particle with only 1/1840 the mass of a proton |
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Element |
A chemical element is a pure substance that consists entirely of one type of atom. |
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Isotopes |
Atoms of the same element that differ in the number of neutrons they contain are known as isotopes. |
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Van Der Waals Forces |
When molecules are close together a slight attraction can develop between oppositely charged regions of nearby molecules. This is called van der Waals Force's. |
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Hydrogen Bond |
The attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge is known as a hydrogen bond |
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Cohesion |
Cohesion is an attraction between molecules of the same substance. |
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Adhesion |
Adhesion is an attraction between molecules of different substances. |
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Solution |
A mix. |
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Solute |
The substance that is dissolved. |
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Solvent |
Water is a solvent. The substance in which the solute dissolves. |
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Product |
a chemical substance formed as a result of a reaction |
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Catalyst |
Substance that initiates or accelerates a chemical reaction |
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Enzyme |
a complex protein produced by cells that acts as a catalyst |
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Reactant |
a chemical substance present at the start of a process |
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Chemical reaction |
a process in which substances are changed into others |
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amino acid |
organic compounds containing an amino group and acid group |
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protein |
an organic compound essential to living cells |
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nucleic acid |
(biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells |
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lipid |
an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates) |
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molecule |
the simplest structural unit of an element or compound |
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PH scale |
a measure of the acidity or alkalinity of a solution |
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acid |
any of various water-soluble compounds having a sour taste |
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base |
a compound reacting with an acid to form a salt and water |
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Population |
Is a group of a the same species in the same area |
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Community |
Different living populations |
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Ecosystem |
A group of populations which have a fend to find energy from one another. |
