Chemistry Homework Help: Answers & Questions Page 83

• What is fire composed of, in terms of atomic structure?

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• What does polar mean in chemistry?

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• What is the structure of (Z)-1-chloro-1-fluoro-1-butene?

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• Is boron a solid, liquid, or gas at room temperature?

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• Convert 500 ##"ft"^3## to ##"m"^3## What is the correct answer? (a) 152 ##"m"^3## (b) 23.9 ##"m"^3## (c) 1.44 ##"m"^3## (d) 14.2 ##"m"^3## (e) none of the above

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• What is the ionic formula for magnesium phosphate?

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• How can I write the Lewis dot structure for MgCl2?

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• When are roman numerals used when naming compounds?

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• A state of dynamic equilibrium, ##Ag_2CO_(3(s)) rightleftharpoons 2Ag_((aq))^(+) + CO_(3(aq))^(2-)##, exists in solution. After water is added and equilibrium is reestablished, what change in the number of moles of ##Ag^+## occurs in the system? Explain.

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• How does electronegativity change going down and across the periodic table?

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• Is KAl(SO4)2•12H2O (alum) deliquescent or efflorescent? How about CuSO4•5H2O ?

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• How can I find the percent compositions of Al2(SO4)3?

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• What is the chemical formula for a dinitrogen trioxide molecule?

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• How do you calculate pH from acid dissociation constant?

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• Why are diastereomers optically active?

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• How many sigma/pi bonds are in the aspirin structure?

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• What is the balanced equation for combustions of propane gas that yields carbon dioxide and water?

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• Is the element Fe a halogen?

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• What mixtures exhibit the tyndall effect?

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• How many resonance structures does nitrite have?

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• How does effective nuclear charge (Zeff) affect atomic size?

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• Given the empirical formula NH2Cl and a molar mass of 51.5 g/mol, what is the molecular formula?

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• Why is biphenyl formed as a by-product in a grignard reaction?

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• How many ml of solution can be made if 5 liters of ethanol are on hand and 30% v/v is to be made?

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• How is the atomic number of an atom defined?

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• How many orbitals are there in the third shell (n=3)?

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• Why does magnesium hydroxide dissolves in aqueous ammonium chloride but not in aqueous sodium chloride?

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• What is the chemical formula for acetone?

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• What pressure would it take to compress 200 L of helium gas initially at 1.00 atm into a 2.00 L tank at constant temperature?

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• How can the periodic table be used to determine molar mass?

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• Is ##NaOH## an acid or base? Is it considered strong or weak?

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• What is the structure of the hemiacetal formed by reaction of butanone with methanol?

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• What is the decay equation of cesium 137?

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• What kind of reaction occurs when you mix aqueous solutions of barium sulfide and sulfuric acid?

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• What phases of matter are compressible?

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• The density of aluminum is ##2.70## ##g####/cm^3##. What is the mass of a solid piece of aluminum with a volume of ##1.50## ##cm^3##?

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• What charge does a proton have?

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• How many resonance structures are there for the NO3- polyatomic ion?

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• How would you balance Na2CO3(s) + HCl(aq) = NaCl(aq) + H2O(l) + CO2(g)?

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• How many double bonds are in the Lewis structure for hydrogen fluoride, which contains one hydrogen atom and one fluorine atom?

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• Draw the electron configuration diagram for carbon?

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• When I converted 968 torr to atm, I got 1.27368421053. Should my final sig fig answer be 1.27 ATM or 1.30 atm?

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• How do you convert Kelvin to Fahrenheit?

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• A sample of ammonia liberates 5.66 kJ of heat as it solidifies at its melting point. What is the mass of the sample? ##DeltaH_(solid) ## = -5.66 kJ/mol?

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• Is cyclohexanol an alkane, alkene, or an alcohol?

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• 3 Reasons of chemical bond formation?

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• What is the difference between pH and hydrogen ion concentration?

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• What is the SI unit for volume?

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• How does metallic character change as you move down a group?

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• Why were alpha particles deflected by the Rutherford's gold -foil experiment?

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