Chapter 2 Word Scramble
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| Question | Answer |
| The proposition that early in Earth's history ,simple chemical compounds in the atmosphere and ocean combined to form larger more complex substances. | Chemical Evolution |
| What number shows the amount of protons ? | Atomic Number |
| Substances that create material ? | Elements |
| what is a element with different numbers of neutrons ? | Isotopes |
| What do you get when you add the number of protons and neutrons? | Mass number |
| What is used to measure weight of an atomic structure? | Atomic mass unit |
| The outside rings of an atom | orbitals |
| The orbit of an electron around the cell nucleus. | electron shells |
| What electron can participate in chemical bonds with other structre? | valence electrons |
| measure of a number of bonds formed by an atom of a given element. | valence |
| an attraction of two atoms that allows the formation of chemical substances. | chemical bonds |
| First element on the periodic table. | Hydrogen |
| Sixth element on the periodic table. | carbon |
| sevnth element on the periodic table. | nitrogen |
| Eighth element on the periodic table. | oxygen |
| elevnth element on the periodic table. | sodium |
| twelvth element on the periodic table. | magnesium |
| fifteenth element on the periodic table. | phosphorus |
| Sixteenth element on the periodic table. | sulfur |
| seventeenth element on the perodic table. | chlorine |
| form of chemical bonding | covalent bond |
| am electrically nuetral group of two or more atoms held together by coavalent bonds. | molecules |
| when two identical non-metals equally share electrons between them. | nonpolar covalent bond |
| a chemical property that describes the tendency of an atom or a functional group to attract electrons towards itself. | electronegativity |
| a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. | ionic bonds |
| nuetral atom. | ions |
| negatively charged atom. | anions |
| positively charged atom. | cations |
| vitamin C = 2 x C3H4O3 = C6H8O6 | molecular formula |
| H H | | H - C - C - O - H | | H H | structural formula |
| a process that leads to the transformation of one set of chemical substances to another. | chemical reaction |
| a unit of measurement used in chemistry to express amounts of a chemical substance. | mole |
| The weight of a molecule is the sum of the weights of the atoms of which it is made. | molecular weight |
| a homogeneous mixture composed of only one phase. | solution |
| the number of moles of solute dissolved in one liter of solution. | molarity |
| is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute | solvent |
| A molecule with a net dipole as a result of the opposing charges | polar (molecule) |
| Term for a substance that wont mix with water | hydrophobic |
Created by:
arieshughes
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