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Stress was added to the following reaction and this was the
Stress was added to the following reaction and this was the result:As4O6 + 6C As4 + 6COThe equilibrium shifted to the right and the reverse reaction decreased.Select all factors that would have caused… read more
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For the following chemical reaction, choose the answer
For the following chemical reaction, choose the answer option with the correct coefficients..._ Fe2+ (aq) + _ MnO4- (aq) + _H+ (aq) → _Mn2+ (aq) + _Fe3+ (aq) + _H2O (l)Group of answer choices… read more
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For the following chemical reaction, choose the answer
For the following chemical reaction, choose the answer option with the correct coefficients..._ Fe2+ (aq) + _ MnO4- (aq) + _H+ (aq) → _Mn2+ (aq) + _Fe3+ (aq) + _H2O (l)Group of answer choices… read more
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Phosphorus has an atomic number of 15 and atomic mass of 30.
Phosphorus has an atomic number of 15 and atomic mass of 30. Assuming it is not an ion, how many protons, electrons and neutrons does an atom of Phosphorus have?Question 7 options:15 protons, 15 neutr… read more
R.R. Jha
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Here is a chemical reaction: H2O2 -> O2 + H2O What is/are
Here is a chemical reaction: H2O2 -> O2 + H2OWhat is/are the reactants? What is/are the products?Question 10 options:H2O2 is the product while O2 and H2O are reactants.H2O2 is the reactant while O2… read more
R.R. Jha
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RRJha: 1. Hydrocarbons contain only hydrogen and carbon. Which
RRJha: 1. Hydrocarbons contain only hydrogen and carbon. Which of the following is not a class of pure hydrocarbons? alkynes alcohols alkenes alkanes 2. What prefix is used to name a hydrocarbon with … read more
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Antimony, Sb reacts with fluorine, F2 to produce antimony pentafluorid
Antimony, Sb reacts with fluorine, F2 to produce antimony pentafluoride, SbF5. Write a balanced equation for this reaction. What mass of antimony pentafluoride is produced when 12.0 g of antimony is r… read more
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Write balanced net ionic equations for the reactions that occur
Write balanced net ionic equations for the reactions that occur in each of the following cases. Identify the spectator ion or ions in each reaction. A) Cr2(SO4)3 + (NH4)2CO3 ----> B) Ba(NO3)2 + K2S… read more
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Which statements about exothermic reactions reactions are correct 1.
Which statements about exothermic reactions reactions are correct? 1. They all have negative enthalpy values 2. The products have a lower enthalpy than the reactants 3. The products are more energetic… read more
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Question 1 (Multiple Choice Worth 10 points) What factors
Question 1 (Multiple Choice Worth 10 points) What factors determine the rate of a reaction ? nature of reactant concentration of reactant activation of energy all of these ----------------------------… read more
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I have 10 questions for a chemistry packet that I need help
I have 10 questions for a chemistry packet that I need help with. 4. Which one of the following statements is correct regarding the naming of binary compounds? a. The nonmetal is named first followed … read more
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Given the thermodynamic data in the table below, calculate
Given the thermodynamic data in the table below, calculate the equilibrium constant for the reaction: 2SO2 (g) + O2 ? (g) 2SO3 (g) Substance ?Hf° (kJ/mol) ?S° (J/mol K) SO2 (g) -297 249 O2 (g) 0 205 S… read more
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1. Specify the total number of orbitals possible with the
1. Specify the total number of orbitals possible with the principal quantum n=3. A) 1 B) 3 C) 8 D) 9 E) 18 2. What effect will adding additional O2 (g) to the following equilibrium system, once equili… read more
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Review Questions 1. If A B is a first order reaction and
Review Questions 1. If A?B is a first order reaction and the concentration of A falls from 0.050 M to 0.015 M after a period of 20 minutes, what is the rate constant, k, for this reaction? A) -0.060 m… read more
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1. Hydrocarbons contain only hydrogen and carbon. Which of
1. Hydrocarbons contain only hydrogen and carbon. Which of the following is not a class of pure hydrocarbons? (Points: 4) alkynes alcohols alkenes alkanes 2. What prefix is used to name a hydrocarbon … read more
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CHEMISTRY 1. In a nuclear reaction, energy is released
CHEMISTRY 1. In a nuclear reaction, energy is released by the combination of two elements into a new element. This process is an example of A. nuclear fission. B. natural radioactivity. C. artificial … read more
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Use the solubility chart to help determine solubilities, ...
Use the solubility chart to help determine solubilities, write the balanced formula equation for each of the following reactions. Then change each equation to the ionic form, and finally to the net io… read more
Shirley
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Consider the following equilibrium at 250 degrees C. PCl 5
Consider the following equilibrium at 250 degrees C. PCl 5 (g) PCl 3 (g)+ Cl 2 (g) + heat Keq=1.05 (at 250 degrees C) The initial concentrations of PCl 5, PCl 3, and Cl 2 are 0.177 M, 0.223 M, and 0.1… read more
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