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Matter includes all of the following EXCEPT - ANSWERlight The study of essentially all substances containing carbon is - ANSWERorganic chemistry the melting of candle wax is classified as a physical change because it - ANSWERproduces no new substances Chemic properties - ANSWERinclude chang...
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Add to cartMatter includes all of the following EXCEPT - ANSWERlight The study of essentially all substances containing carbon is - ANSWERorganic chemistry the melting of candle wax is classified as a physical change because it - ANSWERproduces no new substances Chemic properties - ANSWERinclude chang...
Law of Conservation of Matter - ANSWERthere is no observable change in the quantity of matter during a chemical reaction or during a physical change Law of Conservation of Energy - ANSWERenergy cannot be created or destroyed in a chemical reaction or in a physical change. It can only be converted...
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Add to cartLaw of Conservation of Matter - ANSWERthere is no observable change in the quantity of matter during a chemical reaction or during a physical change Law of Conservation of Energy - ANSWERenergy cannot be created or destroyed in a chemical reaction or in a physical change. It can only be converted...
If a substance reacts with oxygen, the chemical reaction is most likely a... - ANSWERcombustion reaction An unbalanced chemical equation for the reaction of boron fluoride with lithium sulfite is shown below. BF3 + Li2SO3 Right arrow. B2(SO3)3 + LiF What is the coefficient of lithium fluori...
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Add to cartIf a substance reacts with oxygen, the chemical reaction is most likely a... - ANSWERcombustion reaction An unbalanced chemical equation for the reaction of boron fluoride with lithium sulfite is shown below. BF3 + Li2SO3 Right arrow. B2(SO3)3 + LiF What is the coefficient of lithium fluori...
Which of the following statements about the phases of matter is true? - ANSWERIn both solids and liquids, the atoms or molecules pack closely to one another. An atom that has lost an electron is... - ANSWERA cation Two or more substances in variable proportions, where the composition is incons...
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Add to cartWhich of the following statements about the phases of matter is true? - ANSWERIn both solids and liquids, the atoms or molecules pack closely to one another. An atom that has lost an electron is... - ANSWERA cation Two or more substances in variable proportions, where the composition is incons...
Chemistry - ANSWERScience that deals with the structure and properties of substances and with the changes that they go through; how things are built and how we change them Inorganic chemistry - ANSWERChemistry of everything non-carbon containing Organic chemistry - ANSWERChemistry of carbon-co...
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Add to cartChemistry - ANSWERScience that deals with the structure and properties of substances and with the changes that they go through; how things are built and how we change them Inorganic chemistry - ANSWERChemistry of everything non-carbon containing Organic chemistry - ANSWERChemistry of carbon-co...
Which hydrocarbon is 84.1% carbon by mass? (A) CH4 (B) C2H6 (C) C4H10 (D) C8H18 - ANSWER(D) C8H18 Lithium hydrogen carbonate, LiHCO3, decomposes when heated to form Li2O, CO2, and H2O. How many moles of H2O are formed when 0.50 mol LiHCO3 decomposes? (A) 0.25 mol (B) 0.50 mol (C) 0.75 mol (D) ...
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Add to cartWhich hydrocarbon is 84.1% carbon by mass? (A) CH4 (B) C2H6 (C) C4H10 (D) C8H18 - ANSWER(D) C8H18 Lithium hydrogen carbonate, LiHCO3, decomposes when heated to form Li2O, CO2, and H2O. How many moles of H2O are formed when 0.50 mol LiHCO3 decomposes? (A) 0.25 mol (B) 0.50 mol (C) 0.75 mol (D) ...
What is a pure substance? - ANSWERsubstance made of one element What is a mixture? - ANSWERcombo of pure substances What is a homogenous substance - ANSWERevenly distributed particles at microscopic level Hetergenous - ANSWERparticles are not evenly distributed at the microscopic level - us...
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Add to cartWhat is a pure substance? - ANSWERsubstance made of one element What is a mixture? - ANSWERcombo of pure substances What is a homogenous substance - ANSWERevenly distributed particles at microscopic level Hetergenous - ANSWERparticles are not evenly distributed at the microscopic level - us...
Which of these properties is the best one to use for identification of an element? the number of neutrons in the atomic nucleus the number of protons in the atomic nucleus the number of isotopes that are formed by the element the number of charges on ions of the element - ANSWERB. the number of ...
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Add to cartWhich of these properties is the best one to use for identification of an element? the number of neutrons in the atomic nucleus the number of protons in the atomic nucleus the number of isotopes that are formed by the element the number of charges on ions of the element - ANSWERB. the number of ...
Diatomic 7 - ANSWERH, N, O, F, Cl, Br, I Density Formula - ANSWERMass/volume 1 Mole Measurement - ANSWER6.02 x 10^23 1 Mole of Gas At STP - ANSWER22.4 L Standard Temperature - ANSWER0C/273K Standard Pressure - ANSWER101.3kPa/14.7psi/760 mm Hg/29.92 in Hg Molarity (M) - ANSWERMoles ...
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Add to cartDiatomic 7 - ANSWERH, N, O, F, Cl, Br, I Density Formula - ANSWERMass/volume 1 Mole Measurement - ANSWER6.02 x 10^23 1 Mole of Gas At STP - ANSWER22.4 L Standard Temperature - ANSWER0C/273K Standard Pressure - ANSWER101.3kPa/14.7psi/760 mm Hg/29.92 in Hg Molarity (M) - ANSWERMoles ...
Lab Safety Rules of Science - ANSWER-Add acid to water because if you add water to acid, it can boil over and explode. -Wear goggles with side shields to protect your eyes. -Reagents-Container -It is not safe to eat, drink or put on makeup because it can contaminated. -Hold the specimen at a saf...
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Add to cartLab Safety Rules of Science - ANSWER-Add acid to water because if you add water to acid, it can boil over and explode. -Wear goggles with side shields to protect your eyes. -Reagents-Container -It is not safe to eat, drink or put on makeup because it can contaminated. -Hold the specimen at a saf...
Aufbau Principle - ANSWERelectrons fill the lowest energy orbitals first Hund's rule - ANSWERwhen there are two or more orbitals of the same energy available, electrons will go into separate orbitals before pairing up Valance electrons - ANSWERelectrons on the outermost shell of an atom Co...
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Add to cartAufbau Principle - ANSWERelectrons fill the lowest energy orbitals first Hund's rule - ANSWERwhen there are two or more orbitals of the same energy available, electrons will go into separate orbitals before pairing up Valance electrons - ANSWERelectrons on the outermost shell of an atom Co...
Scientific notation - ANSWERthe term for a method of expressing numbers by moving the decimal places after the first significant digit and indicating the number of decimal moves by a power of 10 cm^3 - ANSWERa unit that expresses the volume occupied by a cube 1 centimeter on each side. density...
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Add to cartScientific notation - ANSWERthe term for a method of expressing numbers by moving the decimal places after the first significant digit and indicating the number of decimal moves by a power of 10 cm^3 - ANSWERa unit that expresses the volume occupied by a cube 1 centimeter on each side. density...
Density - ANSWERmass/volume Law of Conservation of Mass - ANSWERmass reactants= mass products Law of Multiple Proportions - ANSWERatoms combine in fixed whole # ratios Alkali metals - ANSWERGroup 1 metals Alkaline earth metals - ANSWERGroup 2 metals Transition metals - ANSWERelements ...
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Add to cartDensity - ANSWERmass/volume Law of Conservation of Mass - ANSWERmass reactants= mass products Law of Multiple Proportions - ANSWERatoms combine in fixed whole # ratios Alkali metals - ANSWERGroup 1 metals Alkaline earth metals - ANSWERGroup 2 metals Transition metals - ANSWERelements ...
In general, when is electromagnetic radiation produced? - ANSWERWhen charged particles move. According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus..how? - ANSWERIn specific, allowed orbits. All orbitals within the p sublevel.. - ANSWERare at the sa...
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Add to cartIn general, when is electromagnetic radiation produced? - ANSWERWhen charged particles move. According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus..how? - ANSWERIn specific, allowed orbits. All orbitals within the p sublevel.. - ANSWERare at the sa...
anode - ANSWERIn electrophoresis, the electrode having a positive charge is the: a) indicating electrode b) anode c) reference electrode d) cathode Sodium fluoride - ANSWERWhich of the following additives is recommended for preservations of glucose in blood samples to prev...
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Add to cartanode - ANSWERIn electrophoresis, the electrode having a positive charge is the: a) indicating electrode b) anode c) reference electrode d) cathode Sodium fluoride - ANSWERWhich of the following additives is recommended for preservations of glucose in blood samples to prev...
Matter - ANSWERAnything that has mass and occupies space Chemistry - ANSWERThe study of composition of matter and the changes that matter undergoes Organic Chemistry - ANSWERThe study of compounds containing carbon Inorganic Chemistry - ANSWERStudy of substances that do not contain carbon ...
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Add to cartMatter - ANSWERAnything that has mass and occupies space Chemistry - ANSWERThe study of composition of matter and the changes that matter undergoes Organic Chemistry - ANSWERThe study of compounds containing carbon Inorganic Chemistry - ANSWERStudy of substances that do not contain carbon ...
Name the 6 polar aprotic solvents - ANSWERacetone, acetonitrile, DMSO, DMF, HMPA, THF Name the 5 polar protic solvents - ANSWERacetic acid, ethanol, formic acid, methanol, water ______ and ______ mechanisms are two step reactions that have _____ intermediates. - ANSWERSN1; E1; 2 Intermediates ...
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Add to cartName the 6 polar aprotic solvents - ANSWERacetone, acetonitrile, DMSO, DMF, HMPA, THF Name the 5 polar protic solvents - ANSWERacetic acid, ethanol, formic acid, methanol, water ______ and ______ mechanisms are two step reactions that have _____ intermediates. - ANSWERSN1; E1; 2 Intermediates ...
Length - ANSWERmeter (m) Mass - ANSWERkilogram (kg) Time - ANSWERsecond (s) Temperature - ANSWERKelvin (K) Amount of Substance - ANSWERmole (mol) Electric Current - ANSWERampere (A) Luminous Intensity - ANSWERcandela (cd) Standard Platinum-Iridium Cylinder - ANSWERthe mass is de...
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Add to cartLength - ANSWERmeter (m) Mass - ANSWERkilogram (kg) Time - ANSWERsecond (s) Temperature - ANSWERKelvin (K) Amount of Substance - ANSWERmole (mol) Electric Current - ANSWERampere (A) Luminous Intensity - ANSWERcandela (cd) Standard Platinum-Iridium Cylinder - ANSWERthe mass is de...
Any ionic compound containing group IA or NH4+ cations are.... - ANSWERAlways Soluble Ionic compounds containing NO3-, NO2-, ClO3-, ClO4-, C2H3O2-, & HCO3- anions are - ANSWERAlways Soluble Ionic compounds containing Cl-, Br-, & I- anions are soluble EXCEPT when combined with... - ANSWERAg, Hg...
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Add to cartAny ionic compound containing group IA or NH4+ cations are.... - ANSWERAlways Soluble Ionic compounds containing NO3-, NO2-, ClO3-, ClO4-, C2H3O2-, & HCO3- anions are - ANSWERAlways Soluble Ionic compounds containing Cl-, Br-, & I- anions are soluble EXCEPT when combined with... - ANSWERAg, Hg...
Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is? A. 30 B. 32 C. 34 D. 64 E. 94 - ANSWERA. 30 Identify the noble gas in the following list. A. oxygen B. Helium C. Chlorine D. Gold E. Nitrogen - ANSWERB. Helium The formation of a ga...
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Add to cartConsider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom is? A. 30 B. 32 C. 34 D. 64 E. 94 - ANSWERA. 30 Identify the noble gas in the following list. A. oxygen B. Helium C. Chlorine D. Gold E. Nitrogen - ANSWERB. Helium The formation of a ga...
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