please help with these questions
a
Write the neutralization reaction that occurs between H2S and NaOH.
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Question 33 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
Ni + ZnCl2 --> NiCl3 + Zn
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Question 43 pts
What substances are produced when an acid reacts with a base?
a salt and hydrogen gas
carbon dioxide and water
a sugar and water
a salt and water
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Question 53 pts
A substance which can act as both an acid and a base in different reactions is said to be _____.
catalytic
amphoteric
diprotic
bipolar
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Question 63 pts
What is NOT an Arrhenius acid?
HF
HCOOH
CH4
HNO3
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Question 73 pts
In the reaction below state what is being oxidized and what is being reduced.
4 Mn + 3 O 2 ? 2 Mn 2 O 3
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Question 83 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
Na + Cl2 ? NaCl
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Question 93 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
Ca + N2 ? Ca3 N2
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Question 103 pts
Which is the expression for the ion-product of water?
Question 113 pts
Which of the following is polyprotic?
H3PO3
H2CO3 and H3PO3
CH3COOH
H2CO3
HClO4
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Question 123 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
N2 + Br2 ? NBr3
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Question 133 pts
What is the pH of a neutral solution?
14
7
0
1
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Question 143 pts
Calculate the pH of a solution that has a [OH?] of 2.6 × 10?6 M.
6.51
7.71
8.41
6.29
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Question 153 pts
In the presence of a base, the color of litmus is _____, while the color of phenolphthalein is _____.
red; pink
red; blue
blue; pink
blue; colorless
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Question 163 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
Mn3+ + ClO3- ? MnO42- + Cl-
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Question 173 pts
Solutions that are basic are also called _____ solutions.
saturated
hydroxic
alkaline
acidifying
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Question 183 pts
What is the molarity of HCl found in a titration where 15 ml of HCl is titrated with 10 ml of 1 M NaOH?
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Question 193 pts
An acid which ionizes completely in water is a _____.
strong electrolyte
nonelectrolyte
base
weak electrolyte
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Question 203 pts
Which is NOT an Arrhenius base?
Ca(OH)2
KOH
CH3OH
CsOH
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Question 213 pts
A solution with a pOH of 12.0 is _____.
acidic
basic
neutral
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Question 223 pts
Substances which change color in the presence of acids or bases are called _____.
catalyst
salts
indicators
alcohols
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Question 233 pts
Bases tend to taste _____.
sweet
salty
bitter
sour
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Question 243 pts
A base which does not ionize completely in water is a _____.
weak electrolyte
strong electrolyte
nonelectrolyte
No bases ionize completely in water
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Question 253 pts
Which statement correctly describes the concentration of hydrogen ion and hydroxide ion in pure water at 25°C?
The concentration of hydrogen ion and hydroxide ion is 10?7 M.
There is no hydrogen ion or hydroxide ion in pure water.
The concentration of hydrogen ion and hydroxide ion is both 1.0 M.
The concentration of hydrogen ion and hydroxide ion is 10?14 M.
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Question 263 pts
How many ionizable hydrogen atoms are present in the CH3COOH molecule?
4
3
1
2
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Question 273 pts
What common household item contains a base?
baking powder
vinegar
lemon juice
tomato sauce
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Question 283 pts
The value of Kw at 25°C is _____.
1. 1.0 × 1014
1.0 × 10?7
1.0 × 10?14
1.0 × 107
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Question 293 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
CO + Cu2O3 ? Cu + CO2
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Question 303 pts
Write the half reactions for the following equation. Please identify which half reaction is oxidized and which is reduced.
Cu + AgNO3 --> Cu(NO3)2 + Ag
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Question 313 pts
What is the pH of a solution that has a [H+] of 1.5 × 10?5 M?
7.31
4.82
3.17
6.70
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Question 323 pts
Which expresses the relationship of pH to pOH?
pH + pOH = 14
pH - pOH = 7
pH + pOH =-14
pH x pOH =7
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Question 333 pts
Calculate the hydrogen ion concentration in a 3.4 × 10?3 M solution of KOH.
3.4 x 10-3
6.6 x 10-11
2.94 x 10-12
3.4 x 1011
-
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Solution: chemistry test done