Abeka Chemistry test 1 fully solved exam study guide (100% accurate expert solutions)download to pass

K potassium isotopes what are the atoms that have the same number of protons but different number of neutrons? Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen proton the number of which type of particle identifies an atom as a given element? electrons which subatomic particle is NOT found in the nucleus of an atom? organic chemist what type of chemist would most likely study alcohols, which consist of carbon, hydrogen, and oxygen? freezing of a liquid what is NOT an evidence that a chemical change has occurred? molecules what is a group of two or more atoms linked together by chemical bonds? -1 what is the relative charge of an electron? John Dalton who developed the atomic theory of matter? phase what is a homogeneous part of a system that is in contact with but physically distinct from other parts of the system? Na sodium Ag silver Mg magnesium S sulfur C carbon Ca calcium N nitrogen weight a measure of the force of gravity upon a object? neutron the subatomic particle of an atom that has no electrical charge? 60 u if the mass of a particular atom is exactly 5x the mass of an atom of carbon-12 what is its mass? increase if the internal kinetic energy of a substance increases, does the substances temperature increase or decrease? gold-foil experiment the discovery of the nucleus and the development of the planetary model of the atom were results of what experiment? molecule the smallest particles into which a compound my be broken down without changing it into another substance? distillation the general term for techniques of separating liquids based on their boiling points? cation an atom that has 3 protons, 4 neutrons, and 2 electrons length of weeks what quantity does NOT have any uncertainties? 123.12 according to the rules of significant figures, to what should the answer to the problem 17.81+45.30+60.0077 be rounded? low accuracy and high precision an object's length was measured 4x; the measured values were 115.00 cm, 114.97 cm, and 115.03 cm. If the actual length is 98.00 cm, how are the accuracy and precision of these measurements best described? nanotesla what is one billionth (10 ^-9) of a tesla? 59 according to the rules of significant figures, to what should the answer to this problem 7.4 x 8.030 be rounded? 520 cm convert 5.2 m into centimeters 1,000,000 how many lux (lx) are in 1 Mlx sugar dissolving in coffee what is NOT chemical change? combustible what is a chemical property apple juice what is a homogeneous mixture 373.15 K convert 100.00 (degrees Celsius) to Kelvins density what term refers to the ratio of an object's mass to its volume? 2903. express 2.903 x 10^3 in regular decimal formula? kinetic energy what term refers to energy that is possessed by matter due to its motion? 3.14 x 10^-3 convert 0.00314 to standard scientific notation? electron which of the three main particles composing the atom has the smallest mass?