chemistry
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| Study of the composition of materials and the changes that materials undergo best describes the science of | chemistry
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| the branch of chemistry that includes the study of materials and processes that occur in living things is | biochemistry
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| the branch of chemistry that is concerned with the indentification and composition of materials is | analytical chemistry
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| the study of chemistry containing carbon is | organic chemistry
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| technology is the | application of scientific knowledge to solve problems
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| applied research | carried out to solve a problem
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| a physical property may be investigated by | melting ice
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| chemical properties | include changes that alter the identity of a substance
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| two features that distinguish matter are | mass and volume
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| the particles in a solid are | packed and close together
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| qualitive observations are recorded using | non-numerical information
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| the si standard units for length and mass are | meter and kilogram
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| the metric unit for length that is closest to the thickness of a dime is the | millimeter
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| the symbol for the metric unit used to measure mass is | g (grams)
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| the unit m to the third measures | volume
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| the symbol that represents the measured unit for volume is | mL
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| the SI unit for time is the | second
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| to calculate the density of an object, | divide its mass by its volume
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| a change in the Earth's gravity will affect its | weight
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| the number of significant figures in the measurement 0.000305 is | 3
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| isotopes of an element contain different numbers of | neutrons
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| the atomic number of oxygen indicates that there are 8 | protons
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| an aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. its mass number is | 27
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| what is the atomic number for aluminum | 13
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| nickel-60 has how many neutrons | 32
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| phosphorus-33 has how many neutrons | 18
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| what does the 218 in polonium-218 represent? | the mass number
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| the half life of an isotope is the time required for half the nuclei in a sample to | undergo radioactive decay
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| the total number of protons and neutrons in the nucleus of an atom is its | mass number
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| chlorine-35 has | 17 protons, 17 electrons, and 18 neutrons
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| sulphur-34 contains how many neutrons | 18
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| The distance between two successive peaks on a wave is its | wavelength
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| an element with 8 electrons in its highest main energy level is a(n) | noble gas
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| the emission of electrons from metals that have absorbed photons is called the | photoelectric effect
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| which group is the noble gases | 18
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| the atomic sublevel with the next highest after 4p id | 5s
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| max planck proposed that a hot object radiated energy in small, specific amounts called | quanta
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| a quantum of electromagnetic energy is called a(n) | photon
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| for electromagnetic radiation, c is the speed of light quals | frequency times wavelength
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| the main energy levels of an atom are indicated by | principal quantum numbers
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| the main energy that can hold 2 electrons is the | first
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| what is the value of the spped of light | 3.oo x 18 to the 8th
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| the discovery of te noble gases changed Mendeleev's periodic table by adding a new | group
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| what group do lithium and potassium belong to | alkali metals
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| Mendeleev attempted to organize the chemical elements based on their | properties
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| argon, krypton, and xenon are | noble gases
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| what group do fluorine and chlorine belong to | halogens
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Created by:
rob hood
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