كويز تفاعلي: 41 Questions: Chemical Reactions — Exam Preparation - كيمياء - الصف الحادي عشر العام - الفصل الثالث

Question 1

DB question no.: 1

Points: 1

Which equation represents a combination reaction?

Question 2

DB question no.: 2

Points: 1

In a combination reaction, two or more reactants combine to form...

Question 3

DB question no.: 3

Points: 1

The reaction $2Na + Cl_2 \rightarrow 2NaCl$ is classified as...

Question 4

DB question no.: 4

Points: 1

Iron rusting by reacting with oxygen is an example of a ___ reaction.

Question 5

DB question no.: 5

Points: 1

$CaO + H_2O \rightarrow Ca(OH)_2$ — the type of this reaction is...

Question 6

DB question no.: 6

Points: 1

$N_2 + 3H_2 \rightarrow 2NH_3$ is an example of a ___ reaction.

Question 7

DB question no.: 7

Points: 1

$S + O_2 \rightarrow SO_2$ — the type of this reaction is...

Question 8

DB question no.: 8

Points: 1

What always distinguishes a combination reaction?

Question 9

DB question no.: 9

Points: 1

$2Mg + O_2 \rightarrow 2MgO$ — the type of this reaction is...

Question 10

DB question no.: 10

Points: 1

What is the product when calcium combines with oxygen?

Question 11

DB question no.: 11

Points: 1

$P_4 + 5O_2 \rightarrow P_4O_{10}$ — the type of this reaction is...

Question 12

DB question no.: 12

Points: 1

How many products does a typical combination reaction have?

Question 13

DB question no.: 13

Points: 1

$H_2 + Cl_2 \rightarrow 2HCl$ — the type of this reaction is...

Question 14

DB question no.: 14

Points: 1

What are the main products of complete combustion of hydrocarbons?

Question 15

DB question no.: 15

Points: 1

$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$ — the type of this reaction is...

Question 16

DB question no.: 16

Points: 1

Which reactant is always required in combustion reactions?

Question 17

DB question no.: 17

Points: 1

What type of energy is released in combustion?

Question 18

DB question no.: 19

Points: 1

Burning wood and releasing CO₂ and water vapor is an example of...

Question 19

DB question no.: 20

Points: 1

Complete combustion of propane C₃H₈ requires the presence of...

Question 20

DB question no.: 21

Points: 1

Incomplete combustion may produce...

Question 21

DB question no.: 22

Points: 1

Which best describes a combustion reaction?

Question 22

DB question no.: 23

Points: 1

The substance always consumed in combustion is...

Question 23

DB question no.: 24

Points: 1

Which reaction type releases the most energy from fuel?

Question 24

DB question no.: 26

Points: 1

Which equation represents a decomposition reaction?

Question 25

DB question no.: 27

Points: 1

$2KClO_3 \rightarrow 2KCl + 3O_2$ — the type of this reaction is...

Question 26

DB question no.: 28

Points: 1

The number of reactants in a decomposition reaction is always...

Question 27

DB question no.: 29

Points: 1

Which type of energy usually causes decomposition reactions?

Question 28

DB question no.: 30

Points: 1

Decomposition of calcium carbonate CaCO₃ produces...

Question 29

DB question no.: 34

Points: 1

The best description of a decomposition reaction is...

Question 30

DB question no.: 35

Points: 1

The reaction $AB \rightarrow A + B$ has ___ reactant(s).

Question 31

DB question no.: 36

Points: 1

$CuCO_3 \rightarrow CuO + CO_2$ — the type of this reaction is...

Question 32

DB question no.: 37

Points: 1

Which energy source causes decomposition reactions?

Question 33

DB question no.: 38

Points: 1

The products of decomposition are always ___ than the reactant.

Question 34

DB question no.: 39

Points: 1

Which equation represents a single replacement reaction?

Question 35

DB question no.: 44

Points: 1

$Mg + 2HCl \rightarrow MgCl_2 + H_2$ — the type of this reaction is...

Question 36

DB question no.: 45

Points: 1

In $2Al + 3CuSO_4 \rightarrow Al_2(SO_4)_3 + 3Cu$, the element being replaced is...

Question 37

DB question no.: 46

Points: 1

The best description of a single replacement reaction is...

Question 38

DB question no.: 47

Points: 1

If zinc is added to silver nitrate solution and a reaction occurs, zinc is ___ silver.

Question 39

DB question no.: 48

Points: 1

In a single replacement reaction, how many elements change position?

Question 40

DB question no.: 49

Points: 1

$Na + H_2O \rightarrow NaOH + \frac{1}{2}H_2$ — the type of this reaction is...

Question 41

DB question no.: 50

Points: 1

If copper is added to zinc sulfate and no reaction occurs, copper is ___ zinc.

كويز تفاعلي: 41 Questions: Chemical Reactions — Exam Preparation

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كويز تفاعلي: 41 Questions: Chemical Reactions — Exam Preparation

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