Types of Reactions HW

Types of Reactions HW

10th - 12th Grade

8 Qs

quiz-placeholder

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Types of Reactions HW

Types of Reactions HW

Assessment

Quiz

Science

10th - 12th Grade

Medium

NGSS
HS-PS1-7, HS-PS1-2

Standards-aligned

Created by

Kristina Tomei

Used 31+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al(s) --> Al3+ + 3e-

Zn+2 + 2 e- --> Zn

The half-reactions for the oxidation-reduction reaction between Al(s) and Zn2+(aq) are represented above. Based on the half-reactions, what is the coefficient for Al(s)

if the equation for the oxidation-reduction reaction is balanced with the smallest whole-number coefficients?

1

2

3

4

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Ni(s)→Ni2+(aq) + 2e

Ag+(aq) + e→Ag(s)

Which of the following is the balanced net ionic equation for an oxidation-reduction reaction between Ag+(aq) and Ni(s) based on the half-reactions represented above?

Ag+(aq) + Ni(s)→Ag(s) + Ni2+(aq)

2Ag+(aq) + Ni(s)→Ag(s) + 2Ni2+(aq)

Ag+(aq) + 2Ni(s)→Ag(s) + 2Ni2+(aq)

2Ag+(aq) + Ni(s)→2Ag(s) + Ni2+(aq)

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cu(s) + 2AgNO3(aq)→Cu(NO3)2(aq) + 2Ag(s)


The reaction between solid copper and aqueous silver nitrate produces solid silver and a blue solution, as represented by the balanced equation shown above. Based on the balanced equation, which of the following identifies the oxidation and reduction half-reactions?

Oxidation: Cu(s)→Cu+(aq) + e

Reduction: Ag2+(aq) + 2e→ Ag(s)

Oxidation: Cu(s)→Cu+2(aq) + 2e

Reduction: Ag+(aq) + e→ Ag(s)

Oxidation: Ag+(aq) + e→ Ag(s)

Reduction: Cu(s)→Cu+2(aq) + 2e

Oxidation: Ag2+(aq) + 2e→ Ag(s)

Reduction: Cu(s)→Cu+(aq) + e

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The diagrams above represent solutes present in two different dilute aqueous solutions before they were mixed. Water molecules are not shown. When the solutions were combined, a precipitation reaction took place. Which of the diagrams below is the best particle representation of the mixture after the precipitation reaction occurred?

Media Image
Media Image
Media Image
Media Image

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

When C2H4(g) reacts with H2(g), the compound C2H6(g)

is produced, as represented by the equation above. The reaction is correctly classified as which of the following types?

Acid-base, because two hydrogen atoms are donated to C2H4 (g)

.

Precipitation, because two reactant species form a single product.

Decomposition, because pure H2(g) is consumed.

Oxidation-reduction, because H2(g) is oxidized.

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

I2(aq) + C6H8O6(aq)→C6H6O6(aq) + 2I(aq) + 2H+(aq)


The compound C6H8O6 reacts with I2 according to the reaction represented by the equation above. The reaction is correctly classified as which of the following types?

Acid-base, because H+ ions are produced.

Precipitation, because there are only two reactants but there are three products.

Double replacement, because both H and I appear as ions in the products.

Oxidation-reduction, because I2 is reduced.

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Cu(s) + 4 HNO3(aq) → Cu(NO3)2(aq) + 2 NO2(g) + 2 H2O(l)


Each student in a class placed a 2.00g sample of a mixture of Cu and Al in a beaker and placed in a beaker and placed the beaker in a fume hood. The students slowly poured 15.0 mL of 15.8 M HNO3(aq) into their beakers. The reaction between the copper in the mixture and the HNO3(aq) is represented by the equation above. The student observed that a brown gas was released from the beakers and that the solutions turned blue, indicating the formation of Cu2+(aq). The solutions were then diluted with distilled water to known volumes.


Which of the following is true about this reaction?

It is a Brønsted-Lowry acid-base reaction, because the solution is neutral at the end.

It is a Brønsted-Lowry acid-base reaction, because HNO3(aq) is a strong acid.

It is a redox reaction, because Cu(s) is oxidized and H+(aq) is reduced.

It is a redox reaction, because Cu(s) is oxidized and the nitrogen atom in NO3(aq) is reduced.

Tags

NGSS.HS-PS1-2

8.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following is the conjugate acid of NH2- ?

NH2-

NH3

H+

NH4+