Chemistry: Acids, Bases and Salts (C8)

Question 1

Acid

Answer 1

A substance with particular properties, including turning litmus red, neutralising and dissolving certain metals.

Question 2

Corrosive

Answer 2

A material that can attack and chemically destroy metals, tissue and can cause damage the instant it is touched.

Question 3

Mineral acids

Answer 3

A chemical compound originating from a reaction between an inorganic compound and its dissociation to produce hydrogen ions.

Question 4

Indicator

Answer 4

A tool used to test different chemical properties of a substance, usually by a change in colour.

Question 5

Cancelled out

Answer 5

To reduce the effect of something or for it to be equal to something else that has the opposite effect.

Italiano: Cancellato

Question 6

Turns

Answer 6

Italiano: Gira

Question 7

Reverse

Answer 7

Italiano: inversione

Question 8

Alkalis

Answer 8

A chemica that is basic

Question 9

Soaked

Answer 9

Italiano: bagnato/imbevuto

Question 10

Dipped

Answer 10

Italiano: immerso

Question 11

Universal Indicator / Full - range indicator

Answer 11

A pH indicator made of a solution that changes colour when in contact with solutions of certain pH levels.

Question 12

Spectrum

Answer 12

Italiano: spettro

Question 13

pH

Answer 13

Unit used to measure the acidity of a solution

Question 14

pH Scale

Answer 14

A measure of how acidic or basic a solution is.

Question 15

Sensitive

Answer 15

Italiano: sensibilità

Question 16

Narrow range

Answer 16

Italiano: gamma ristretta

Question 17

pH meter

Answer 17

Used to measure the acidity of a solution

Question 18

Distilled Water

Answer 18

Water that is completely free from any sort of dissolved or suspended solids and organisms.

Italiano: acqua distillata

Question 19

Hydrogen ions

Answer 19

Nucleus of a Hydrogen atom separated from its accompanying electron.

Italiano: ione di idrogeno

Question 20

Potenz H(ydrogen)

Answer 20

pH is the abbreviation for Potenz H (power of hydrogen)

Question 21

Organic solvent

Answer 21

Carbon based substances, capable of dissolving or dispersing one or more other substances.

Italiano: solvente organico

Question 22

Covalently bonded

Answer 22

The interatomic linkage resulting from sharing an electron pair between two atoms.

Italiano: covalentemente legato

Question 23

Acidic oxides

Answer 23

An oxide which when combined with water, gives off an acid.

Italiano: Ossidi acidi

Question 24

Dilute

Answer 24

Italiano: diluire

Question 25

Concentrated

Answer 25

Italiano: concentrato (e.g. concentrato di calcio)

Question 26

Probe

Answer 26

Italiano: sonda

Question 27

Acid and Alkali

Answer 27

Any substance with a pH under 7 is considered an Acid while if over 7, is considered an Alkali. Italiano: acidi e alcali

Question 28

Basic oxides

Answer 28

A base without water, also called base anhydrides

Question 29

Neutral oxides

Answer 29

An oxide that is neither acidic nor basic.

Question 30

White precipitate

Answer 30

A heavy white amorphous powder, usually obtained by adding ammonia to mercuric chlorides or corrosive sublimates.

Question 31

Amphoteric hydroxide

Answer 31

Hydroxide salts that can act as either acids or bases depending on the reaction conditions.

Question 32

Soil pH and plant growth

Answer 32

Depending on the pH of the soil, the plant may grow more or not at all, with most plants preferring a pH range between 6.5 and 7.5.

Question 33

Peat content

Answer 33

Peat is an organic fuel consisting of spongy material created by decomposing organic matter and certain minerals.

Question 34

Chalky areas

Answer 34

Italiano: zone gessose

Question 35

Liming

Answer 35

Italiano: Calcinazione

Question 36

Flue-gas desulfuriser

Answer 36

A process that removes sulphur dioxide from from flue gas

Question 37

Built - in

Answer 37

Italiano: integrato

Question 38

Slaked lime

Answer 38

Calcium hydroxide

Question 39

Fertilisers

Answer 39

Organic or inorganic substances containing chemical elements to improve growth of plants and fertility of soil

Question 40

Insoluble

Answer 40

A substance that will not dissolve in a solvent, even after mixing. Italiano: insolubile

Question 41

Bases

Answer 41

A chemical species that detonates electrons, accepts protons or releases hydroxide ions in a liquid.

Question 42

Neutralisation

Answer 42

A reaction where an acid reacts with an alkali to form a neutral solution made of salt and water.

Question 43

Alkalis

Answer 43

Alkalis are basic, ionic salts of an alkali metal or alkaline earth metal, an alkaline is also a solution with a pH over 7.

Question 44

Antacids

Answer 44

Any substance used to counteract or neutralise gastric acids, usually used as medicine.

Question 45

Reactive metal

Answer 45

Italiano: Metallo reattivo

Question 46

Metal Carbonate

Answer 46

A salt of carbonic acid.

Question 47

Salt

Answer 47

Substance produced from the reaction of acid with a base.

Question 48

Parent acid

Answer 48

The acid which produces a salt with an appropriate base.

Question 49

Displace

Answer 49

Italiano: Spostare

Question 50

Marble chips

Answer 50

Can also be written as: Pieces of marble Italiano: Scaglie di marmo

Question 51

Fizzes

Answer 51

Italiano: sfrigolare, spumare.

Question 52

Cloudy

Answer 52

Italiano: torbida

Question 53

Ionic compounds

Answer 53

Compounds that contain ions, held together by the attractive forces of oppositely charged ions.

Question 54

Filtered out and Filtered off

Answer 54

Filtration, the process in which solid particles in a liquid or gas are removed through the use of a filter medium, allowing the gas or liquid to pass through, while retaining the solid particles.

Question 55

Dried

Answer 55

Italiano: asciutto, secco.

Question 56

Titration

Answer 56

The process of determining the quantity of a substance by adding measured increments of another substance, with which it reacts until exact chemical equivalence is achieved.

Question 57

End - Point

Answer 57

Italiano: Punto finale, meta.

Question 58

Precipitations

Answer 58

A type of reaction in which two or more reactants react together to form an insoluble solid, commonly known as precipitate.

Question 59

Falls

Answer 59

Italiano: Cade