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| 11647192422 | matter | anything that has mass and occupies space | 0 | |
| 11647195373 | mass | a measure of how much matter is in an object | 1 | |
| 11647197330 | atom | smallest amount of an element that can exist and still remain its chemical identity | 2 | |
| 11647209406 | proton | positively charged; 1 amu; found in the nucleus | 3 | |
| 11647223082 | neutron | uncharged; 1 amu; found in the nucleus | 4 | |
| 11647230286 | electron | negatively charged; 0 amu; orbits the nucleus | 5 | |
| 11647240366 | nucleus | dense, inner portion of the atom consisting of protons and neutrons | 6 | |
| 11647263718 | atomic number | the # of protons present in the nucleus (an element is defined according to this) | 7 | |
| 11647277418 | atomic mass (mass number) | number equal to the number of protons plus neutrons present in the nucleus | 8 | |
| 11647359689 | element | any of the basic substances found in nature designated by the particular type of atoms in its make-up | 9 | |
| 11647394872 | isotope | different forms of the same element; atoms with the same # of protons but different numbers of neutrons | 10 | |
| 11647443127 | HCONSP | in living things the most common elements are... | 11 | |
| 11647509041 | compound | two or more atoms chemically joined in definite proportions. compounds have unique physical and chemical properties which may be different from any of the element that form them. | 12 | |
| 11647583557 | to form molecules | atoms combine in definite ratios __ ____ _________. be able to analyze molecular formulas to determine the numbers and kinds of atoms present in a given compound | 13 | |
| 11647783355 | chemical bond | attractive force that holds two or more atoms together | 14 | |
| 11647792469 | ionic bond | bond formed from the attraction between positive and negative ions | 15 | |
| 11647800472 | ion | an atom which has lost or gained electrons, and thus has a positive or negative electrical charge | 16 | |
| 11647830416 | covalent bond | bond formed between atoms which share electrons | 17 | |
| 11648015233 | stability; orbital shell; covalent bonding | for molecular "_________," atoms tend to have a definite number of electrons in the outermost _______ _____. ________ _______ allows for atoms to achieve this stable number of electrons | 18 | |
| 11648045796 | van der Waals forces | attractive force between the oppositely charged regions of nearby molecules | 19 | |
| 11648074678 | polar molecules | have an uneven distribution of electrons and has slightly positive and negative ends | 20 | |
| 11648101117 | polar nature | because of the ______ ______ of the molecule, water will form strong attractions to other polar molecules | 21 | |
| 11648104112 | molecular adhesion | attractive forces resulting from hydrogen bonding between molecules of different substances | 22 | |
| 11648111703 | molecular cohesion | attractive forces resulting from hydrogen bonding between molecules of the same substance | 23 | |
| 11648123394 | high specific heat | water has a ____ ________ ____, meaning it can absorb and store relatively large amounts of energy | 24 | |
| 11648129576 | not as dense | unlike other fluids, water is ___ __ _____ when it freezes | 25 | |
| 11775061341 | mixture | a combination of two or more substances that are not chemically combined | 26 | |
| 11775075910 | solution | a mixture in which one substance is dissolved within another | 27 | |
| 11775091402 | solute | substance which is dissolved | 28 | |
| 11775104921 | solvent | substance that dissolves other substances | 29 | |
| 11775122375 | water | what is the prime solvent because of its polar nature? | 30 | |
| 11775145674 | concentration | relative amount of solute vs. solvent (usually expressed quantitatively in percent or in molarity) | 31 | |
| 11775169019 | suspension | mixture in which the particles of one substance are suspended within another | 32 | |
| 11775190547 | acid | substance which tends to release hydrogen ions in solution | 33 | |
| 11775208878 | base | substance which tends to release hydroxide ions in solution | 34 | |
| 11775280198 | pH | measure of the relative acidity of a solution. it measure the negative log of hydrogen ion concentration in solution. | 35 | |
| 11775381154 | 0 to 14 | the pH scale ranges from _ __ __ with the lowest numbers representing the most acidic measurements and the higher numbers representing the most basic | 36 | |
| 11775485650 | organic | composed primarily of carbon and hydrogen | 37 | |
| 11778768157 | monomers;polymers | organic molecules may form simple ________ or many of those may join together to form ________ | 38 | |
| 11804446321 | structure of carbohydrates | contains C, H, and O in the approximate ratio of Cx H2 Ox | 39 | |
| 11804455621 | function of carbohydrates | main source of energy for living systems; also used as a structural molecule | 40 | |
| 11804464498 | examples of carbohydrates | monosaccharides such as glucose disaccharides such as sucrose polysaccharides such as starch, cellulose | 41 | |
| 11804489549 | structure of lipids | composed of glycerol and fatty acids | 42 | |
| 11804492622 | not | lipids are ___ soluble in water | 43 | |
| 11804498900 | stored form of energy; membranes | lipids are used as ______ ____ __ ______, and in the formation of _________ for waterproofing | 44 | |
| 11804510780 | examples of lipids | fats, oils, waxes, steroids | 45 | |
| 11804513987 | structure of proteins | relatively large molecules composed of long chains (polymers) of amino acids | 46 | |
| 11804523556 | major units | proteins function as the _____ _____ of structure within living things | 47 | |
| 11804529793 | enzymes | special proteins called _______ control chemical reactions within living things | 48 | |
| 11804533452 | structure of nucleic acids | large molecules made of repeating polymers of nucleotides | 49 | |
| 11804542299 | nucleotide | one 5 carbon sugar, one phosphate molecule, and one nitrogenous base | 50 | |
| 11804550441 | function of nucleic acids | store and transmit genetic information | 51 | |
| 11804553679 | DNA and RNA | examples of nucleic acids | 52 | |
| 11804563318 | chemical reaction | process by which chemical bonds are formed or broken | 53 | |
| 11804569740 | reactants | starting materials | 54 | |
| 11804572294 | products | ending materials | 55 | |
| 11804575961 | exergonic reaction | a chemical reaction in which energy is released | 56 | |
| 11804578898 | endergonic reaction | a chemical reaction in which energy is stored | 57 | |
| 11804583760 | activation energy | the energy which is required to initiate a chemical reaction | 58 | |
| 11804589214 | catalyst | substance which controls the rate of chemical reactions by lowering the activation energy required for the reaction to occur | 59 | |
| 11804598542 | are not used up | catalyst ___ ___ ____ __ during the reaction | 60 | |
| 11804609718 | used by living things | enzymes are catalysts ____ __ ______ ______ | 61 | |
| 11804612343 | substrate | the substance which interacts with the enzyme | 62 |
