The first person with the most right answers get the points. I am comparing this
ID: 841332 • Letter: T
Question
The first person with the most right answers get the points. I am comparing this with my HW
The coefficients in the balanced equation KClO3 ? KCl + O2 are 2: 2: 3.
A) True
B) False
The coefficients in the balanced equation C8H6 + O2 ? CO2 + H2O are:
In a single displacement reaction, one element reacts with another element to form a new compound.
A) True
B) False
By convention, the cathode is the positive electrode.
A) True
B) False
The salt bridge is a necessary component of the voltaic cell for it to operate properly.
A) True
B) False
Electricity is the flow of electrons.
A) True
B) False
One needs to balance a chemical reaction before identifying the type of reaction.
A) True
B) False
The coefficients in the balanced equation NH3 + O2 ? N2O3 + H2O are:
Cobalt(II) nitrate and cobalt(II) acetate are both water soluble.
A) True
B) False
Sodium carbonate is water soluble.
A) True
B) False
All hydroxides are water insoluble.
A) True
B) False
When silver, potassium, acetate, and iodide ions are placed together in a test tube, potassium iodide precipitates out.
A) True
B) False
All nitrates are water soluble.
A) True
B) False
Ammonium carbonate is water soluble.
A) True
B) False
Potassium nitrate is water insoluble.
A) True
B) False
Match the word or phrase in the right column that completes the statement in the right column.
A. chemical
B. oxidizing
C. oxidation
D. rechargeable
E. oxygen
F. electrolyte
A key reactant in a combustion reaction is _____.
The substance that gains electrons is called the _____ agent.
Any chemical change in which an element loses electrons is called _____.
A secondary battery or a storage battery is also known as a _____ battery.
A battery is a substance that converts _____ energy to electrical energy.
The component of the voltaic cell through which ions can flow is called the _____.
Match the word or phrase in the right column that completes the statement in the right column.
A. voltage
B. reduction
C. negative
_____ is the measure of the force that moves electrons from the anode to the cathode in a voltaic cell.
The cathode is the electrode in a voltaic cell at which _____ occurs.
In a voltaic cell, the sign of the electrode is _____ where oxidation takes place.
Ammonium phosphate is water insoluble.
A) True
B) False
All chlorides are water soluble.
A) True
B) False
Match each of the equations in the left column with the correct relative coefficient ratio when the equation is balanced that appears in the right column.
A. 1: 1: 1: 1
B. 1: 3: 3: 4
C. 1: 3: 2: 2
D. 1: 2: 2: 1
E. 2: 3: 2: 4
F. 1: 2: 1: 1
CH4 + Br2 ?
CH4 + O2 ?
Mg + HBr ?
CaCl2 + AgNO3 ?
C3H8O + O2 ?
C2H4 + O2 ?
Predict whether each of the compounds listed on the left column are water soluble or insoluble.
A. water soluble
B. water insoluble
potassium nitrate
silver (I) chloride
lithium acetate
lead (II) sulfate
cobalt (II) sulfide
potassium bromide
barium carbonate
In the reaction NH4++ H2O ? NH3+ H3O+, water acts as a Bronsted-Lowry base.
A) True
B) False
A Bronsted-Lowry base is a proton acceptor.
A) True
B) False
CH3CO2H has only one acidic hydrogen.
A) True
B) False
H2PO4-is the conjugate acid of PO43-.
A) True
B) False
In the reaction H2O + H2O ? OH-+ H3O+, water acts as a Bronsted-Lowry acid.
A) True
B) False
The pH of natural rainwater is slightly acidic due to the carbon dioxide in the atmosphere.
A) True
B) False
A Bronsted-Lowry base is a proton donor.
A) True
B) False
In the reaction CO32-+ H3O+? HCO3-+ H2O, the hydronium ion acts as a Bronsted-Lowry base.
A) True
B) False
In the reaction H2O + H2O ? OH-+ H3O+, water acts as a Bronsted-Lowry base.
A) True
B) False
Milk's pH is slightly basic.
A) True
B) False
Match each of the acid-base pairs in the left column with the relative neutralization ratio that appears in the right column.
A. 1: 2
B. 2: 1
C. 1: 1
D. 3: 1
E. 1: 3
hydrochloric acid - calcium hydroxide
sulfuric acid - sodium hydroxide
hydrochloric acid - sodium hydroxide
phosphoric acid - potassium hydroxide
hydrochloric acid -aluminum hydroxide
Match each of the acids that appear in the left column with the maximum number ofH3O+produced per molecule of acid.
A. 1
B. 2
C. 3
hydrochloric
sulfuric
nitric
phosphoric
acetic
carbonic
sulfurous
hypochlorous
Identify the household products that appear in the left column as acidic or basic.
A. acidic
B. basic
coffee
blood
bleach
orange juice
gastric juice
rainwater that falls in industrial areas
milk
household ammonia
26.
Match each substance in the left column with the corresponding fact in the right column.
A. It is the conjugate base of HSO3-.
B. It is the conjugate base of CH3CO2H.
C. It is the conjugate acid of HCO3-.
D. It does not have a conjugate base.
H2CO3
CH3CO2-
SO3-2
Cl-
In a decomposition reaction, one compound breaks down into two or more smaller compounds or elements.
A) True
B) False
A reducing agent is itself oxidized.
A) True
B) False
The sum of the oxidation states of all atoms in a formula must add up to the overall charge of the formula.
A) True
B) False
Match every equation in the left column with its type that appears in the right column.
A. single replacement
B. combustion
C. decomposition
D. combination
Mg + HCl ? H2 + MgCl2
CH4 + O2 ? CO2 + H2O
NaClO3 ? NaCl + O2
H2 + O2 ? H2O (Do not choose combustion!)
Mg + N2 ? Mg2N3
Mg + HBr ? MgBr2 + H2
H2O2 ? H2 + O2
Match each element in the left column with its most likely oxidation state in a compound in the right column. (Based on the elements location in the periodic table)
A. +1
B. +2
C. +3
D. 0
E. -1
F. -2
G. -3
H. +4/-4
magnesium
aluminum
oxygen
chlorine
potassium
barium
nitrogen
sulfur
fluorine
strontium
carbon
arsenic
Match each element in every anion in the left column with its oxidation state that appears in the right column.
A. +1
B. +2
C. +3
D. +4
E. +5
F. +6
G. +7
H. 0
I. -1
J. -2
K. -3
manganese in the MnO4-
phosphorus in the PO43-
carbon in the CO32-
nitrogen in NaNO2
chromium in K2CrO4
chlorine in NaClO
sulfur in aluminum sulfide
nitrogen in sodium nitride
iron in iron metal
bromine in potassium bromide
magnesium in magnesium fluoride
A. chemical
B. oxidizing
C. oxidation
D. rechargeable
E. oxygen
F. electrolyte
Explanation / Answer
The first person with the most right answers get the points. I am comparing this with my HW
The coefficients in the balanced equation KClO3 ? KCl + O2 are 2: 2: 3.
A) True
The coefficients in the balanced equation C8H6 + O2 ? CO2 + H2O are:
In a single displacement reaction, one element reacts with another element to form a new compound. 2:19:16:6
B) False
By convention, the cathode is the positive electrode.
A) True
The salt bridge is a necessary component of the voltaic cell for it to operate properly.
A) True
Electricity is the flow of electrons.
A) True
One needs to balance a chemical reaction before identifying the type of reaction.
A) True
The coefficients in the balanced equation NH3 + O2 ? N2O3 + H2O are:
Cobalt(II) nitrate and cobalt(II) acetate are both water soluble.
B) False
Sodium carbonate is water soluble.
A) True
All hydroxides are water insoluble.
B) False
When silver, potassium, acetate, and iodide ions are placed together in a test tube, potassium iodide precipitates out.
B) False
All nitrates are water soluble.
A) True
Ammonium carbonate is water soluble.
A) True
Potassium nitrate is water insoluble.
B) False
Match the word or phrase in the right column that completes the statement in the right column.
A. chemical
B. oxidizing
C. oxidation
D. rechargeable
E. oxygen
F. electrolyte
A key reactant in a combustion reaction is ___E__.
The substance that gains electrons is called the ___B__ agent.
Any chemical change in which an element loses electrons is called _C____.
A secondary battery or a storage battery is also known as a __D___ battery.
A battery is a substance that converts __A___ energy to electrical energy.
The component of the voltaic cell through which ions can flow is called the _F____.
Match the word or phrase in the right column that completes the statement in the right column.
A. voltage
B. reduction
C. negative
_A____ is the measure of the force that moves electrons from the anode to the cathode in a voltaic cell.
The cathode is the electrode in a voltaic cell at which _B____ occurs.
In a voltaic cell, the sign of the electrode is _C____ where oxidation takes place.
Ammonium phosphate is water insoluble.
B) False
All chlorides are water soluble.
B) False
A. chemical
B. oxidizing
C. oxidation
D. rechargeable
E. oxygen
F. electrolyte
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