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A decomposition reaction is a reaction where A. a compound breaks down into at least two products. B. cations are exchanged between two compounds and a precipitate is formed. C. a compound burns in the presence of oxygen. D. a new, bigger compound is formed. A decomposition reaction is a reaction where A. a compound breaks down into at least two products. B. cations are exchanged between two compounds and a precipitate is formed. C. a compound burns in the presence of oxygen. D. a new, bigger compound is formed. A. Energy is given off in the form of heat. B. Energy is transferred from the surroundings to the reactants. C. Energy is released. D. The reaction feels warm. A. Energy is given off in the form of heat. B. Energy is transferred from the surroundings to the reactants. C. Energy is released. D. The reaction feels warm. A. total mass of the reactants. B. subatomic mass of the reactants. C. electrons of the reactants. D. proportional masses of the reactants. A. total mass of the reactants. B. subatomic mass of the reactants. C. electrons of the reactants. D. proportional masses of the reactants. Chapter 6 A.synthesis reaction B.decomposition reaction C. single-displacement reaction D.double-displacement reaction Chapter 6 B. decomposition reaction C. single-displacement reaction D.double-displacement reaction Chapter 6 F. using an enzyme in a reaction G.adding an inhibitor to the reaction mixture H.increasing the concentration of the reactants I. grinding a solid reactant to make a fine powder Chapter 6 F. using an enzyme in a reaction H.increasing the concentration of the reactants I. grinding a solid reactant to make a fine powder Chapter 6 a. b. c. d. H2O H2 the coefficient subscript Chapter 6 a. b. c. d. H2O H2 the coefficient subscript Chapter 6 A. atoms are destroyed B. atoms are rearranged C. molecules are created D. atoms are created Chapter 6 A. atoms are destroyed B. atoms are rearranged C. molecules are created D. atoms are created Chapter 6 A. a color change occurs B. a gas is given off C. heat is released D. the substance dissolves Chapter 6 A. a color change occurs B. a gas is given off C. heat is released D. Chapter 6 A.fireworks exploding in the sky B.photosynthesis in plant cells C. respiration in animal cells D.wood burning in a fireplace Chapter 6 A.fireworks exploding in the sky C. respiration in animal cells D.wood burning in a fireplace Chapter 6 Chapter 6 Addition of heat causes the particles to move faster and collide more often. The increase in collisions speeds up the reaction. Chapter 7 A.polar B.nonpolar C. ionic D.saturated Chapter 7 A.polar B.nonpolar C. ionic D.saturated Chapter 7 A.hydrogen content B.low boiling point C. high polarity D.small size Chapter 7 A.hydrogen content B.low boiling point C. high polarity D.small size Chapter 7 A. uniform throughout B.easily mixed together C. made of two or more liquids D. large particles Chapter 7 A. uniform throughout B.easily mixed together C. made of two or more liquids D. large particles Chapter 7 A. gas-liquid B.solid-solid C.solid-liquid D. all of the above Chapter 7 A. gas-liquid B.solid-solid C.solid-liquid D. all of the above Chapter 7 A. can dissolve more solute at the current conditions. B. will precipitate out all its dissolved solute C. can dissolve more solute only if heated. D. can dissolve more solute only if the pressure is increased. Chapter 7 A. can dissolve more solute at the current conditions. B. will precipitate out all its dissolved solute C. can dissolve more solute only if heated. D. can dissolve more solute only if the pressure is increased. Chapter 7 A. suspension B.colloid C. solution D. alloy Chapter 7 A. suspension B.colloid C. solution D. alloy Chapter 7 A. 1,1,1 B.1,2,1 C. 2,2,1 D. 2,1,2 Chapter 7 A. 1,1,1 B.1,2,1 C. 2,2,1 D. 2,1,2 Chapter 7 F. Suspensions contain larger particles in solution. G. Colloids have smaller particles that do not settle out. H. A colloid is a type of solution, while a suspension is a type of mixture. I. The solvent in a suspension is polar, while the solvent in a colloid is nonpolar. Chapter 7 F. Suspensions contain larger particles in solution. H. A colloid is a type of solution, while a suspension is a type of mixture. I. The solvent in a suspension is polar, while the solvent in a colloid is nonpolar. Chapter 7 Chapter 7 The solvent in latex paint has a polar molecule like water. Paint thinner contains nonpolar compounds. Chapter 8 A.pH 7 B.pH 8 C. pH 3 D.pH 14 Chapter 8 B.pH 8 C. pH 3 D.pH 14 Chapter 8 A. form hydronium ions (H3O+) when dissolved in water. B. turn red litmus paper blue. C. make foods taste bitter. D.react with neutral liquids to form bases. Chapter 8 A. form hydronium ions (H3O+) when dissolved in water. B. turn red litmus paper blue. C. make foods taste bitter. D.react with neutral liquids to form bases. Chapter 8 A. household ammonia. B. HCl dissolved in water. C. vinegar. D. pure water. Chapter 8 A. household ammonia. B. HCl dissolved in water. C. vinegar. D. pure water. Chapter 8 A. acetic acid B. nitric acid. C. hydrochloric acid. D. formic acid. Chapter 8 A. acetic acid B. nitric acid. C. hydrochloric acid. D. formic acid. Chapter 8 A. keeps pH from changing B. found in your blood C. neutralizes excess acid and base D. whitens cloths Chapter 8 A. keeps pH from changing B. found in your blood C. neutralizes excess acid and base D. whitens cloths Chapter 8 A. acetic acid B. nitric acid. C. hydrochloric acid. D. formic acid. Chapter 8 A. acetic acid B. nitric acid. C. hydrochloric acid. D. formic acid. Chapter 8 Chapter 8 Acidic compounds have a sour taste. Chapter 8 A.emulsifier B.ions C. salts D.indicator Chapter 8 A.emulsifier B.ions C. salts D.indicator Chapter 8 A.pH 2 B.pH 4 C. pH 6 D.pH 8 Chapter 8 A.pH 2 B.pH 4 C. pH 6 D.pH 8 Chapter 9 A.beta particles B.gamma rays C. alpha particles D.X rays Chapter 9 A.beta particles B.gamma rays C. alpha particles D.X rays Chapter 9 A.nuclear decay B.isotopes C. nuclear mass D. radon Chapter 9 A.nuclear decay B.isotopes C. nuclear mass D. radon Chapter 9 A.uranium B. gamma rays C. carbon D. radon Chapter 9 A.uranium B. gamma rays C. carbon D. radon Chapter 9 A.nucleus repulsion. B. nuclear force. C. nuclear instability. D. nuclear decay. Chapter 9 A.nucleus repulsion. B. nuclear force. C. nuclear instability. D. nuclear decay. Chapter 9 A.split. B. combine. C. mutate. D. gain energy. Chapter 9 A.split. B. combine. C. mutate. D. gain energy. Chapter 9 A.Radioactive isotopes release a large amount of chemical energy. B.When large atoms break apart, some of their mass is converted to energy. C. The bonds between uranium atoms are very strong and release energy when they are broken. D.A significant amount of energy is released when two atoms come together to form one larger atom. Chapter 9 A.Radioactive isotopes release a large amount of chemical energy. B.When large atoms break apart, some of their mass is converted to energy. C. The bonds between uranium atoms are very strong and release energy when they are broken. D.A significant amount of energy is released when two atoms come together to form one larger atom. Chapter 9 F. They are not a type of radiation. G.They are stopped by material as thin as a sheet of paper. H.They combine with beta particles in the air to form a neutron. I. They are harmless even if they come in contact with the human body. Chapter 9 F. They are not a type of radiation. H.They combine with beta particles in the air to form a neutron. I. They are harmless even if they come in contact with the human body. Chapter 9 A.–4 B.–1 C. 0 D.+1 Chapter 9 A.–4 B.–1 D.+1 Chapter 9 F. alpha decay G. nuclear chain reaction H. radioactivity I. nuclear fusion Chapter 9 F. alpha decay H. radioactivity I. nuclear fusion Chapter 10 A.direction B.distance C.time D.weight Chapter 10 A.direction B.distance C.time D.weight Chapter 10 A. friction between a book sliding across table B.friction between your shoes and the ground when you are walking C. friction between a parked car tire and road below it D.friction between your pencil tip and paper as you write Chapter 10 A. friction between a book sliding across table B.friction between your shoes and the ground when you are walking C. friction between a parked car tire and road below it D.friction between your pencil tip and paper as you write Chapter 10 A.–5 m/s2 B.–2.5 m/s2 C. 0 m/s2 D.2.5 m/s2 Chapter 10 A.–5 m/s2 C. 0 m/s2 D.2.5 m/s2 Chapter 10 A.450 m/s east B.340 m/s east C. 45 m/s east D.2.5 m/s east Chapter 10 A.450 m/s east B.340 m/s east C. 45 m/s east D.2.5 m/s east Chapter 10 F. The object gradually slows and stops moving due to friction. G. The object moves at a constant speed, neither speeding up nor slowing down. H. The object accelerates because there is no friction to oppose the forces acting on it. I. The object accelerates because the force of gravity is stronger than friction. Chapter 10 F. The object gradually slows and stops moving due to friction. H. The object accelerates because there is no friction to oppose the forces acting on it. I. The object accelerates because the force of gravity is stronger than friction Chapter 10 Chapter 10 Air resistance and the force due to gravity would change the velocity of the plane. Chapter 11 A.0.0 N B.2.0 N C. 9.8 N D.19.6 N Chapter 11 B.2.0 N C. 9.8 N D.19.6 N Chapter 11 A.The force of gravity is inactive on the skydiver at terminal velocity. B.Air resistance exceeds the force of gravity. C. Air resistance balances the force of gravity. D.The force of gravity decreases as the skydiver descends. Chapter 11 A.The force of gravity is inactive on the skydiver at terminal velocity. B.Air resistance exceeds the force of gravity. D.The force of gravity decreases as the skydiver descends. Chapter 11 Chapter 11 Weight is a measure of the force of gravity on an object. The mass of your body stays the same, but the force on it is less on Mars. Chapter 12 A.No machine is 100% efficient. B.Energy is neither created nor destroyed. C. The energy resources of Earth are limited. D.The energy of a system is always decreasing. Chapter 12 A.No machine is 100% efficient. C. The energy resources of Earth are limited. D.The energy of a system is always decreasing.