Which of the statements below concerning how to balance chemical reactions is FALSE? to find the...
Which of the statements below concerning how to balance chemical reactions is FALSE?
|
to find the total numbers of each type of atom in a compound, you can multiply the subscript by the coefficient |
||
|
You cannot change the coefficients (big numbers) in front of the compound, since that changes the identity of the compound |
||
|
If you don't see a coefficient or a subscript written, you assume it means "1" |
||
|
you can change coefficient numbers in order to balance out the number of atom |
Homework Answers
Answer: option 2
Coefficient can be changed to balance the equation.
We cant change the subscript of elements in a compound as this will
change the identity
So, option 2 is wrong.
For example:
N2 + H2 -> NH3
We cant change the subscript 2 in N2 or 2 in H2 or 3 in H
But to balance we can add coefficient.
Below is balanced equation:
N2 + 3 H2 -> 2 NH3
Add Answer to:
Which of the statements below concerning how to balance chemical
reactions is FALSE?
to find the...
Consider " 2 S2O32-". Which of the following statements is FALSE?
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
15) 15) The chemical equation below is not balanced. Balance the ce which statement concerning the...
15) 15) The chemical equation below is not balanced. Balance the ce which statement concerning the balanced equation is TROR ced. Balance the equation, then determine KCIO3(s) - KCI() + O2(g) A) The balanced equation will have three atoms of oxygen on each B) The balanced equation will have an equal number of moles of reactants and products. The balanced equation will contain a substance whose coefficient is 1. D) The balanced equation will have one atom of potassium on...
Experiment 6: A Series of Chemical Changes Experiment A SERIES OF CHEMICAL CHANGES The After Thought...
Experiment 6: A Series of Chemical Changes
Experiment A SERIES OF CHEMICAL CHANGES The After Thought ! Cross out the incorrect statements dealing with the notation and interpretation of chemical reactions. In a chemical reaction: - the notation symbolizes the starting substances and the substances produced as a chemical transformation is carried out - the Law of Conservation of Mass requires that the number of atoms of each element cannot change during the process - formulas of the reactants and...
Review Constants Periodic Tab Enthalpy (H) is a state function, which means the enthalpy of a...
Review Constants Periodic Tab Enthalpy (H) is a state function, which means the enthalpy of a given chemical reaction is independent of the path taken from the initial to final states for that chemical reaction. Enthalpy Change (AI) is a measure of the energy change of a system that does virtually no Calculating Reaction Enthalpies Using Hess's Law Follow the steps below and use the information provided on the left to find the A Hm for the following process: Overall...
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation...
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation of the acid and the cation formed by the dissociation of the base in a ratio that results in a neutral, ionic compound. For example, if you have a cation with a 1+ charge and an anion with a 2- charge, you will need two cations to balance the charge. [(1+ charge on cation)(2)]+[2 - charge on anion)(1)] = (+2) + (-2) = 0...
Reactions and Neutralization in the Copper Cycle A Cycle of Chemical Reactions of Copper PRE-LABORATORY ASSIGNMENT...
Reactions and Neutralization in the Copper Cycle
A Cycle of Chemical Reactions of Copper PRE-LABORATORY ASSIGNMENT Finish the pre-laboratory assignments before the laboratory experiment. Read the manual of this experiment and complete the following questions. 1. a. Identify oxidation-reduction reactions in the copper cycle experiment. For each oxidation-reduction reaction, write half reactions to show what is oxidized and what is reduced. Identify acid-base reactions and precipitation reactions in the copper cycle experi- ment. Write equations for the corresponding reactions. b....
I just need the blank data table with all the reactions shown. I need ALL 36...
I just need the blank data table with
all the reactions shown. I need ALL 36 spaces for reacting
solutions. I don't need the observations. Please
help.
ARE hem 310 LAB EXPERIMENT #6 Chemical Reactions: Double Replacements I. OBJECTIVES 1. To perform and record observations of some chemical reactions. 2. To gain skill in writing balanced equations from observations of chemical reactions using known reactants. 3. To look for ions that, if present, may cause the compounds to be insoluble...
confused on the rest of these problems Determining the Balanced Chemical Reaction Equation Which set of...
confused on the rest of these problems
Determining the Balanced Chemical Reaction Equation Which set of data do you trust more? Circle: Run Run 2 Average Based on your data, how many moles of NaOH react with I mole of succinic acid? (Rounded to nearest integer value.) The following is the reaction in word form: sodium hydroxide + succinic acid - water + sodium succinate Use your experimental ratio rounded to integer values of NaOH to Succinic acid to insert...
need help with relative rate problems Experiment 21 Data and Calculations: Rates of Chemical Reactions, Il....
need help with relative rate problems
Experiment 21 Data and Calculations: Rates of Chemical Reactions, Il. A Clock Reaction A. Dependence of Reaction Rate on Concentration Reaction: 61(ag + BrO,ag)+ 6H(aq)3aqp+ Brap+HO0 rate irBeO, Tr-- In all the reaction mistures used in this experiment, the color change occurred when a constant predetermined aumber of moles of BrO," had been used n in the reaction The color "clock" allows you to measue the ime mgaired for this fixed number of moles...
answer all questions ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below,...
answer all questions
ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below, Indicate the stoichiometric coefficients for the reaction. Do not leave answer spaces blank if the coefficient is one (1). AIBrg(aq)+ HBr(aq)- Al(s)+ H2(g) The balanced equation will then be used in the following two questions. 5 pts Question 2 Using the balanced chemical equation from the previous question, how many moles of H2(g) will be formed from 6.24 moles of HBr. Your answer will...
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
15) 15) The chemical equation below is not balanced. Balance the ce which statement concerning the balanced equation is TROR ced. Balance the equation, then determine KCIO3(s) - KCI() + O2(g) A) The balanced equation will have three atoms of oxygen on each B) The balanced equation will have an equal number of moles of reactants and products. The balanced equation will contain a substance whose coefficient is 1. D) The balanced equation will have one atom of potassium on...
Experiment 6: A Series of Chemical Changes
Experiment A SERIES OF CHEMICAL CHANGES The After Thought ! Cross out the incorrect statements dealing with the notation and interpretation of chemical reactions. In a chemical reaction: - the notation symbolizes the starting substances and the substances produced as a chemical transformation is carried out - the Law of Conservation of Mass requires that the number of atoms of each element cannot change during the process - formulas of the reactants and...
Review Constants Periodic Tab Enthalpy (H) is a state function, which means the enthalpy of a given chemical reaction is independent of the path taken from the initial to final states for that chemical reaction. Enthalpy Change (AI) is a measure of the energy change of a system that does virtually no Calculating Reaction Enthalpies Using Hess's Law Follow the steps below and use the information provided on the left to find the A Hm for the following process: Overall...
To determine the salt formed during a neutralization reaction, combine the anion formed by the dissociation of the acid and the cation formed by the dissociation of the base in a ratio that results in a neutral, ionic compound. For example, if you have a cation with a 1+ charge and an anion with a 2- charge, you will need two cations to balance the charge. [(1+ charge on cation)(2)]+[2 - charge on anion)(1)] = (+2) + (-2) = 0...
Reactions and Neutralization in the Copper Cycle
A Cycle of Chemical Reactions of Copper PRE-LABORATORY ASSIGNMENT Finish the pre-laboratory assignments before the laboratory experiment. Read the manual of this experiment and complete the following questions. 1. a. Identify oxidation-reduction reactions in the copper cycle experiment. For each oxidation-reduction reaction, write half reactions to show what is oxidized and what is reduced. Identify acid-base reactions and precipitation reactions in the copper cycle experi- ment. Write equations for the corresponding reactions. b....
I just need the blank data table with
all the reactions shown. I need ALL 36 spaces for reacting
solutions. I don't need the observations. Please
help.
ARE hem 310 LAB EXPERIMENT #6 Chemical Reactions: Double Replacements I. OBJECTIVES 1. To perform and record observations of some chemical reactions. 2. To gain skill in writing balanced equations from observations of chemical reactions using known reactants. 3. To look for ions that, if present, may cause the compounds to be insoluble...
confused on the rest of these problems
Determining the Balanced Chemical Reaction Equation Which set of data do you trust more? Circle: Run Run 2 Average Based on your data, how many moles of NaOH react with I mole of succinic acid? (Rounded to nearest integer value.) The following is the reaction in word form: sodium hydroxide + succinic acid - water + sodium succinate Use your experimental ratio rounded to integer values of NaOH to Succinic acid to insert...
need help with relative rate problems
Experiment 21 Data and Calculations: Rates of Chemical Reactions, Il. A Clock Reaction A. Dependence of Reaction Rate on Concentration Reaction: 61(ag + BrO,ag)+ 6H(aq)3aqp+ Brap+HO0 rate irBeO, Tr-- In all the reaction mistures used in this experiment, the color change occurred when a constant predetermined aumber of moles of BrO," had been used n in the reaction The color "clock" allows you to measue the ime mgaired for this fixed number of moles...
answer all questions
ral Chemistry Concept 5 pts Question 1 Balance the chemical equation shown below, Indicate the stoichiometric coefficients for the reaction. Do not leave answer spaces blank if the coefficient is one (1). AIBrg(aq)+ HBr(aq)- Al(s)+ H2(g) The balanced equation will then be used in the following two questions. 5 pts Question 2 Using the balanced chemical equation from the previous question, how many moles of H2(g) will be formed from 6.24 moles of HBr. Your answer will...
Most questions answered within 3 hours.
-
Lourdes LLC. keeps a $100 change fund in its cash register. At
the end of the...
asked 3 minutes ago -
If the barometric pressure is 107.4 kPa, what is the pressure in
kPa of the gas...
asked 5 minutes ago -
State the operation or control mechanism of TRIAC, DIAC, UJT, PUT,
GTO and IGBT.
asked 6 minutes ago -
Generator An AC generator supplies an rms voltage of 220 V at
50.0 Hz. It is...
asked 9 minutes ago -
Cars enter a car wash at a mean rate of 2 cars per half an hour....
asked 20 minutes ago -
Write SQL queries to answer the following question: A. Which
students are enrolled in Database and...
asked 34 minutes ago -
Required:
How was Dell computer working capital policy as a competitive
advantage? Write at least 200...
asked 16 minutes ago -
Your eye is 2.5 m away from a 60W light bulb that emits light in
all...
asked 24 minutes ago -
As a human and using your own human Intelligent Analysis (IA),
you would have noted that...
asked 26 minutes ago -
Transverse waves on a string have wave speed 8 m/s, amplitude
0.071 m, and wavelength 0.33...
asked 39 minutes ago -
At −11°C a sample of carbon monoxide gas exerts a pressure of
0.45 atm. What is...
asked 39 minutes ago -
Aqueous hydrobromic acid HBr reacts with solid sodium hydroxide
NaOH to produce aqueous sodium bromide NaBr...
asked 54 minutes ago