Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Metals and reactions > Flashcards

Metals and reactions Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

What happens in displacement reaction

A

When one more reactive metal takes the element from the less reactive metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Definition of atom

A

The smallest bit of matter that forms an element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Definition of element

A

A substance that cannot be broken down into a simpler substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Definition of compound

A

A mixture of two elements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Metal + oxygen

A

Metal oxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Metal + acid

A

Metal salt and hydrogen gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

List the sentence to remember the reactivity series

A

Please stop calling me a careless zebra instead try learning how copper saves gold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

List the metals in the reactivity series

A

Potassium sodium calcium magnesium aluminum carbon zinc iron tin lead hydrogen copper silver gold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How is iron extracted from its ore

A

It’s mixed with zinc because zinc is more reactive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where is carbon in the reactivity series

A

it is in fifth just below calcium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

4 properties of metals

A

Shiny , High melting points , conductors of heat , High densities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
List the flame test colours for the metals below  
copper
lithium
sodium
Potassium
calcium
A

copper: green
lithium: red
sodium: yellow
Potassium: purple
calcium: orange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Write the word equation for metals reacting with water

A

Metal + water = Metal hydroxide + hydrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

balance the equation of potassium + water

A

It turns into potassium hydroxide + hydrogen KOH+H2o

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the following symbols for magnesium tin copper and sodium

A

MG SN CU NA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

two useful displacement reactions

A

zinc displacing iron ions from iron (II) sulfate solution
nickel displacing copper from copper (II) nitrate solution
copper displacing silver from silver (I) nitrate solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What happens to the reactivity of alkali metals as you go down

A

They become more reactive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

In which group are the alkali metals

A

group 2

19
Q

What colour will metal oxides turn in the presence of an indicator,

A

They are bases so the indicator will turn pink

20
Q

what is a reduction reaction

A

is a reaction is where oxygen is given up

21
Q

What is a metal ore

A

a mixture of metals

22
Q

What happens to the mass of a metal when it reacts with oxygen where does this extra mass come from

A

metal reacts with oxygen and rusts, the extra mass comes from the oxygen element joining the ore.

23
Q

3 methods of rust prevention

A

to keep the metal painted, oiled & away from water.

24
Q

Formula for sodium chloride + hydrochloric acid = sodium chloride + water

A

NACL+HCL - NACL+ H2O

25
Q

What happens in an exothermic reaction?

A

Heat is released, causing the temperature of the immediate surroundings to rise.

26
Q

What is an endothermic reaction?

A

An endothermic process absorbs heat and cools the surroundings.”

27
Q

What is an example of an endothermic reaction

A

Electrolysis

28
Q

Give an example of an exothermic reaction

A

CaO(s) + H2O (l) → Ca(OH)2(s)= Calcium hydroxide

Water is added to dry cement to make concrete.

29
Q

What is activation energy

A

Minimum quantity of energy to start a reaction

30
Q

What practical way can you measure the amount of energy given off in a chemical reaction

A

Use a calorimeter experiment to measure the amount of heat given off

31
Q

graph showing endothermic exothermic reactions, what would it look like

A

Exothermic has a long tail as the product has a low energy after the reaction so energy has been given off.

32
Q

What to remember when calculating Bond energies,

A

moles(reactants) - (products)moles

33
Q

Difference between rechargeable and non rechargeable batteries ?

A

The chemical reaction is reversible with a rechargeable battery

34
Q

What type of energy is used in a hydrogen cell?

A

Chemical energy produce electricity. It is a clean form of energy

35
Q

What happens in a hydrogen fuel cell?

A

Within the fuel cell, the fuel is oxidised electrochemically rather than being burned

36
Q

Combustion is what type of reaction

A

Combustion also popularly known as burning is an exothermic reaction.

37
Q

Is Combustion a Redox reaction?

A

yes, involving an oxidant which is usually atmospheric oxygen.

38
Q

Photosynthesis is what reaction.

A

Endothermic , The light required is absorbed by a green pigment called chlorophyll in the leaves.

39
Q

Electrolysis is what reaction?

A

Endothermic

40
Q

Neutralization is what reaction?

A

generally exothermic

41
Q

Calcium oxide combines with water is what reaction?

A

exothermic

42
Q

Ammonium chloride dissolves in water is what reaction?

A

endothermic reaction.

43
Q

What happens in a reduction reaction

A

the compound gains electrons

44
Q

What happens in a oxidation reaction

A

the compound loses electrons

Chemistry (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions