I think my answers are right? can anyone define the terms on the left?
Match each definition with the appropriate term Arrhenius Acid Hydrogen-ion donor Arrhenius Base Hydrogen-ion acceptor Bronsted-Lowry Acid Electron Donor Bronsted-Lowry Base Electron acceptor Lewis Acid iChoose Hydrogen-ion acceptor Increases hydronium concentration when dissolved in water Electron acceptor Electron Donor Hydrogen-ion donor Increases hydroxide concentration when dissolved in water Lewis Base
How does a solution of pH 7 compare to a solution of pH 10?
pH 7 has more OH- ions
pH 7 is more basic
pH 7 has a higher pH
pH 7 has more H+ ions
2 points
QUESTION 4
According to the Arrhenius Theory of acids and bases, a base is:
A substance that decrease the amount of hydroxide ions present.
A substance that increases the amount of hydroxide ions present when it is dissolved in water.
A substance that increase the amount of hydrogen ions present.
A substance that increases the amount of hydrogen ions present when it is dissolved in water.
QUESTION 5
Which of the following are true regarding acid-base titrations?
They are used to determine the concentration of an unknown acid or base.
The acid or the base must be a standard solution with a known concentration
The standard solution is titrated into the chemical with the unknown concentration.
All of the above are true regarding acid-base titrations.
2 points
QUESTION 6
Which of the following is not an example of a neutralization reaction?
HCl + NaOH NaCl +H2O
2 NaOH + H2CO3 Na2CO3 +2 H2O
H2SO4 + 2 NH4OH (NH4)2SO4 + 2 H2O
2 AgNO3 + Zn 2Ag +Zn(NO3)2
QUESTION 7
Which acid base theory defines an acid as a proton donor and a base as a proton acceptor?
Arrhenius Theory
Bronsted-Lowery Theory
Conjugate Pairs Theory
Lewis Theory
2 points
QUESTION 8
The Arrhenius Theory states that acid-base reactions create a solution composed of a water and a salt. This is because mixing an acidic and basic solution together yields:
A neutral solution
A solution with a pH at or near 7
Both A and B are correct
QUESTION 9
Which of the following correctly defines a standard solution?
A solution which always has the same molecular geometry.
A solution in which the concentration is precisely known.
A solution in which the volume is precisely known.
A solution which always has different levels of solutes and solvents.
2 points
QUESTION 10
Acids naturally present in food are generally safe to eat because they are usually:
