bioo
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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| study of matter | chemistry
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| anything that occupies space & has mass | matter
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| quantitity of matter | mass
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| pull of gravity | weight
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| pure substance that can be broken down into a simpler kind of matter | elements
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| center of the atom | nucleus
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| has a positive charge | protons
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| the nunber of protons in an element & it identifies the element | atomic number
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| are neutral, no charge | neutrons
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| what makes up the atomic mass? | protons & neutrons
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| electrons have a _________ charge | negative charge
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| elements with the same number of protons & a different number of neutrons | isotope
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| all elements have ________ | isotopes
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| 2 or more different elements bonded together | compound
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| 2 or more elements covalently bonded together | molecule
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| 2 atoms share a pair of electons | covalent bond
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| atoms give & take electrons | ionic bond
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| enegry available for work | free energy
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| energy in storage | potential energy
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| energy in motion | kinetic energy
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| breaking of bonds and forming of new bonds | chemical reaction
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| matter can neither be created nor destroyed only changed | law of conservation of matter
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| involves the release of energy | exeronic reaction
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| endogonic reaction | involves the absoprtion of energy
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| amount of energy needed to start a reaction | activation energy
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| speeds up rate of a reaction | catalyst
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| 2 parts of a mixture | solute & solvent
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| substance that dissolves | solute
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| substance in which the solute is dissolved | solvent
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| water is the solvent in an ________ solution | aqueus
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| measurement of the amount of solute dissolved in the solution | concentration
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| exess amount of hydrogen | acid
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| exess amount of hydroxide | base
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| on the pH scale, the closer to 0 the _______ the acid | stonger
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| neutralizes long amount of acid or base | buffer
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| changes color in presence of what your testing for | indicator
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| when pleaced into base tuyrbs blue but when placed into acid stays red | red litmuus paper
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| when placed into a base stays blue but when placed into an acid turns red | blue litmus paper
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| changes to various colors based on how acidic or basic the substance is | pH paper
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
nicole_kunkle
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