2d reactivity series

2d Reactivity series

• reacting with water

• reacting with acid

2.15 How metals can be arranged

Multiple Choice

Which is the correct word equation for the reaction of sodium with water?

• Sodium + water --- Sodium hydroxide + hydrogen

• Sodium + water --- Sodium oxide + hydrogen

• Sodium + water --- Sodium oxide

• Sodium + water --- Sodium hydroxide

Multiple Choice

Which is the correct balanced chemical equation for the reaction of magnesium with steam?

• Mg (s) + H2O (g) ---- MgO (aq) + H2 (g)

• Mg (s) + H2O (l) ---- MgO (aq) + H2 (g)

• Mg (s) + H2O (g) ---- Mg(OH)2 (aq) + H2 (g)

• Mg (s) + H2O (l) ---- Mg(OH)2 (aq) + H2 (g)

Multiple Choice

Which is the correct chemical equation for the reaction of zinc with hydrochloric acid?

• Zn + HCl --- ZnCl2 + H2

• Zn + HCl --- ZnCl + H2

• Zn + HCl --- ZnCl + H

• Zn + HCl --- ZnCl2 + H

Multiple Choice

Four different metals are added with hydrochloric acid. According to the observations (check picture), the most reactive metal is

• Metal A

• Metal B

• Metal C

• Metal D

Multiple Choice

Four different metals are added with hydrochloric acid. According to the observations (check picture), the second most reactive metal is

• Metal A

• Metal B

• Metal C

• Metal D

Multiple Choice

Four different metals are added with hydrochloric acid. According to the observations (check picture), the third most reactive metal is

• Metal A

• Metal B

• Metal C

• Metal D

Multiple Choice

Four different metals are added with hydrochloric acid. According to the observations (check picture), the least reactive metal is

• Metal A

• Metal B

• Metal C

• Metal D

Multiple Choice

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the first observation

• Copper

• Magnesium

• Iron

• Potassium

Multiple Choice

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the second observation

• Copper

• Magnesium

• Iron

• Potassium

Multiple Choice

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the third observation

• Copper

• Magnesium

• Iron

• Potassium

Multiple Choice

The following observations are found with 4 metals

1. Reacts vigorously with steam

2. Reacts vigorously with cold water

3. No reaction

4. Reacts slowly with cold water and steam

Select the metal that fits the third observation

• Copper

• Magnesium

• Iron

• Potassium

Multiple Choice

Why aluminium appears unreactive?

• It is an unreactive metal

• It reacts with oxygen to form an aluminium oxide layer

• It only reacts with some elements

Multiple Choice

which is the MOST reactive metal?

• magnesium

• potassium

• gold

• silver

• aluminium

Multiple Choice

which of these elements will rust?

• magnesium

• potassium

• lithium

• iron

Multiple Choice

A displacement reaction will occur when...

• a more reactive metal displaces a less reactive metal from its compound.

• A less reactive metal displaces a more reactive metal from its compound

• Displacement only occurs when two of the same metals are reacted 

• Displacement reactions will only occur in metals above iron in the reactivity series

Multiple Choice

what are the product of the reaction between iron and Copper Sulfate ?

• copper +iron Sulfate

• no reaction

• iron copper + sulphate

• iron

Poll

if we add copper to iron sulfate

• no reaction

• displacement reaction

Multiple Choice

Magnesium + copper sulfate --> ?

• magnesium sulfate + water

• magnesium sulfate + copper

• magnesium chloride + hydrogen

• magnesium chloride + water

Multiple Choice

copper + Iron oxide =

• vigorous reaction

• slow reaction

• no reaction

• copper oxide +iron

Multiple Choice

Galvanizing is a process of:

• Applying a Zinc coating to bare steel

• Washing the body with the phosphate coating

• dipping a body in E-COAT

• Chemically etching primer to steel

Multiple Select

Which of the following is / are examples of sacrificial protection against rusting?

• Iron object coated with tin

• Underground iron pipes connected to magnesium bars

• Iron railings coated with paint

Multiple Choice

What is the chemical nature of rust?

• iron (II) oxide

• hydrated iron (II) oxide

• iron (III) oxide

• hydrated iron(III) oxide

Multiple Choice

Is this an example of corrosion?

• Yes

• No

​General Definition

• ​a reaction where one or more electrons are transferred from one atom to another

• oxidation = loss of electrons

• reduction = gain of electrons

• occur simultaneously, because the electrons must go somewhere. Therefore RedOx reaction

Multiple Choice

Another name for a "oxidation-reduction" reaction is

• chemical reaction

• neutralization reaction

• redox reaction

• nuclear reaction

Multiple Choice

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer

Multiple Choice

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Multiple Choice

Is calcium oxidized or reduced in the following reaction? 
2CaO--> 2Ca + O₂

• Oxidized

• Reduced

Multiple Choice

Given the oxidation-reduction reaction:

H₂ + 2 Fe⁺³ → 2 H⁺ + 2 Fe⁺²

Which species undergoes reduction?

• H₂

• Fe³⁺

• H⁺

• Fe²⁺

Multiple Choice

In a redox reaction, the species reduced

• gains electrons and is the oxidizing agent

• gains electrons and is the reducing agent

• loses electrons and is the oxidizing agent

• loses electrons and is the reducing agent

​Oxidising and Reducing Agents

• oxidising agent = substance that makes oxidation occur in another substance (or the substance that gets reduced)

• reducing agent = substance that makes reduction occur in another substance (or the substance that gets oxidised)

• Example:

  • copper is reduced, and zinc is oxidised

  • therefore, copper is the oxidising agent, and zinc is the reducing agent ​

    ​

Multiple Choice

The oxidizing agent is the substance that:

• Gains protons

• Loses protons

• Gains electrons

• Loses electrons

Multiple Choice

In the reaction,

Fe₂O₃(s) + 3CO(g) → 2Fe(l) + 3CO₂(g)

• carbon monoxide is reduced

• carbon monoxide is an oxidizing agent

• Iron (III) oxide is oxidised

• iron (III) oxide is the oxidizing agent

Multiple Choice

Iron rust in the presence of:

• Vacuum

• Moisture

• Oxygen

• Moisture and Oxygen

Multiple Choice

Which of the following is NOT a harmful effect of corrosion?

• Bad appearance

• Maintenance cost

• Clean product

• Plant shutdown

Multiple Choice

What is corrosion?

• The release of oxygen

• Breakdown of a metal

Multiple Choice

Which method is used to protect iron on car bodies from rusting?

• Paint

• Plastic

• Oil

Multiple Choice

Which method is used to protect iron on kids toys from rusting?

• Paint

• Plastic

• Oil

Multiple Choice

Which method is used to protect iron on bike chains from rusting?

• Paint

• Plastic

• Oil