help with chemistry 9 – Custom Nursing Help

Need help with chemistry.
Quiz review
Question 1
Which of these are properties of acids?
I.They are sour in taste.
II.They turn red litmus paper blue.
III.They dissolve many metals.IV.They feel slippery.
I only
III only
I and II
I and III
II, III, and IV
Question 2
Which of these are properties of bases?
I.They are sour in taste.
II.They turn red litmus paper blue.
III.They dissolve many metals.IV.They feel slippery.
I only
III only
I and II
I and III
II and IV
Question 3
Which of these is the best definition of a Bronsted-Lowry acid?
Any substance that donates H+ ions in solution
Any substance that produces OH− ions in solution
Any substance that accepts a lone pair of electrons
Any substance that neutralizes a base in solution
Any substance that accepts H+ ions in solution
Question 4
Which of these is the Bronsted-Lowry acid in this chemical equation?
H2O + CN− → HCN + OH−
H3O+
H2O
H2SO4
CN−
OH−
Question 5
Which of these compounds cannot act as a Bronsted-Lowry base?
NH4+
OH−
CH3COO−
H2O
NH3
Question 6
The formula of the hydronium ion is _____.
OH−
OH+
H3O+
H3O−
H4O+
Question 7
The formula of the hydroxide ion is _____.
OH−
OH+
H3O+
H3O−
OH2−
Question 8
Which of these substances is a strong acid?
HCN
H2PO3
HCl
HNO2
H2CO3
Question 9
Which of these substances is a weak base?
HCN
CH3COOH
HCl
HCOOH
C5H5N
Question 10
What is the pH of pure water at 25oC?
0
1
10
14
None of these
Question 11
Which of these has the greatest [H3O+]?
pH = 2
pH = 5
pH = 7
pH = 11
pH = 13
Question 12
Which of these statements concerning pH isincorrect?
pH is based on the [H3O+] in solution.
If [H3O+] = 1.0 × 10−13, the solution is basic.
pH = 3 is ten times more acidic than pH = 2.
If pH > 7, the solution is basic.
Pure water has [H3O+] = 1.0 × 10−7.
Question 13
Which of these acids is responsible for the sourness in many fruits?
Muriatic acid
Citric acid
Sulfuric acid
Acetic acid
Benzoic acid
Question 14
Which of these acids is responsible for the tartness of vinegar?
Muriatic acid
Citric acid
Sulfuric acid
Acetic acid
Benzoic acid
Question 15
Which of these acids is found in stomach acid?
Malic acid
Hydrochloric acid
Phosphoric acid
Acetic acid
Lactic acid
Question 16
Which of the following acids are found in most soft drinks?
Acetic and citric acids
Lactic and citric acids
Malic and lactic acids
Carbonic and phosphoric acids
Hydrochloric and phosphoric acids
Question 17
Which of these substances has the highestpH?
CH3COOH
HNO3
NH3
HCOOH
NaOH
Question 18
Which of these pairs represents the products of the dissociation of the following compound in water?
Mg(OH)2 = _____ + _____
MgOH, H2
OH−, MgOH+
Mg2+, 2 OH−
Mg+, 2 OH−
OH2−, Mg+
Question 19
Which of these is the primary ingredient in baking soda?
NaOH
Mg(OH)2
Al(OH)3
CaCO3
NaHCO3
Question 20
Which of these equations best represents the reaction that takes place in the stomach when the antacid calcium carbonate is taken?
NaHCO3 = H2O + CO
CaCO3 = H2O + CO
CO32− + 2H3O+ = 3H2O + CO2
Ca2+ + 2H3O+ = 3H2O + CaO
CaCO3 + H3O+ = Ca(OH)2 + CO2
Question 21
The most acidic rainfall in the United Statesoccurs in _____.
the northwestern region
the southwestern region
the southeastern region
the northeastern region
the central region
Question 22
Which of the following bases is used as a common floor and window cleaner?
Sodium carbonate
Magnesium hydroxide
Calcium carbonate
Ammonia
Baking soda
Question 23
Which of these acids is a component of vinegar?
H2SO4
HCl
HNO3
H3PO4
CH3COOH
Question 24
Which of these substances is a base?
NaHCO3
HCl
HNO3
H3PO4
CH3COOH
Question 25
Which of these substances is an acid?
NaHCO3
NaOH
NH3
KOH
CH3COOH
Homework review
Q1
Write a balanced equation for thedouble-replacement neutralizationreaction described, using the smallest possible integer coefficients.
A reaction occurs when aqueous solutions of potassium hydroxide andnitric acid are combined.
___+___ —-> ___+____
Q2
Write a balanced equation for thedouble-replacement neutralizationreaction described, using the smallest possible integer coefficients.
A reaction occurs when aqueous solutions of potassium hydroxide andhydrosulfuric acid are combined. Assume excess base.
___+___ —-> ___+____
Q3
Write a balanced equation for thedouble-replacement neutralizationreaction described, using the smallest possible integer coefficients.
A reaction occurs when aqueous solutions of calcium hydroxide andhydrochloric acid are combined.
___+___ —-> ___+____
Q4
In the following net ionic equation, identify each reactant as either a Bronsted-Lowry acid or a Bronsted-Lowry base.
HCOOH(aq)+H2O(l)—>HCOO-(aq)+H3O+(aq)
B-L_____acid or base B-L_____acid or base
The formula of the reactant that acts as a proton donor is ____
The formula of the reactant that acts as a proton acceptor is ____
Q5
In the following net ionic equation, identify each reactant as either a Bronsted-Lowry acidor a Bronsted-Lowry base.
NH3(aq)+H2O(l)—>NH4+(aq)+OH-(aq)
B-L_____acid or base B-L_____acid or base
The formula of the reactant that acts as a proton donor is ___
The formula of the reactant that acts as a proton acceptor is ____
Q6 find it in the attachment
 
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