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3. List the three main parts of an atom and their electrical charges.
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HELP HURRRRYYY Which of the following chemical equations is unbalanced? A. CH4 + 2O2 CO2 + 2H2O B. 3Mg + Mn2O3 3MgO + Mn C. AgNO3 + LiOH AgOH + LiNO3 D. 2NaOH + H2SO4 Na2SO4 + 2H2O
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Why is it important to study chemical reactions in closed containers
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What is the law of conservation of mass? how is it related to balancing chemical equations
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How many moles of MgCl2 are there in 335 g of the compound?
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What does the concentration of a solution refer to? In what 3 ways can concentration be expressed?
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Joel has noticed that his engine is not compressing properly during the compression and ignition step. What problem will this pose?
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How much CO2 is produced from the decomposition of 200g of CaCO3 if 112 of CaO are produced?
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The hydroxide ion concentration in pure water at 25ºC is NOT equal to A.the hydronium ion concentration. B.1 X 10^-7 M. C.the hydroxide concentration in a solution with a pH of 7. D.1 X 10^7 M.
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What does the concentration of a solution refer to? In what 3 ways can concentration be expressed?
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Acetic acid ionizes only partially in solution. What type of acid is acetic acid?
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What is a non-polar molecule
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The kinetic energy of all the particles in a given sample of matter is the same?true or false
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How many moles are in 22 grams of Argon
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The last element in any period always has: A.two electrons in the outermost energy level B.its outer energy level completed C.the properties of an inert gas D.the lowest atomic weight because it is a gas
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____ is the transfer of energy in the form of rays or waves. a. Conduction c. Radiation b. Convection d. Condensation
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Which half-reaction is most easily oxidized?
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Substance tha have excess hydroxide ions (OH-) are
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How many moles of N₂ are essential for generating 0.08 moles of Li₃N in the given reaction? 6Li + N₂ 2Li₃N 0.013 moles 0.04 moles 0.08 moles 0.16 moles 0.48 moles
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