A measure of the number of particles in a given volume.

A substance is corrosive if it can burn your skin or eyes.

A solution is dilute if it has a small number of solute particles per unit volume.

A more reactive metal displaces – or pushes out – a less reactive metal from its compound.

Reaction where a more reactive metal takes the place of a less reactive metal in a compound.

A substance that cannot be broken down into other substances.

Substances used to identify whether unknown solutions are acidic or alkaline.

A substance that makes your skin itch or swell up a little.

An indicator. Blue litmus paper goes red in acid. Red litmus paper goes blue in alkali.

Elements on the left of the Periodic Table. Most are shiny, good conductors, malleable and solid at room temperature.

Describes an object or particle with no charge, or with equal positive and negative charges.

An acid cancels out a base or a base cancels out an acid.

Elements on the right of the Periodic Table. Most are dull, poor conductors, brittle, and solid or gaseous.

A chemical reaction in which a substance combines with oxygen.

A substance made up of a metal or non-metal element joined to oxygen.

A table of all the elements, grouped by similar properties.

Shows whether a substance is acidic, alkaline, or neutral.

A reversible change where new substances are not made.

A property of a material you can observe or measure.

A substance that is made in a chemical reaction.

A starting substance in a chemical reaction.

A substance that reacts vigorously with substances like dilute acids and water.

The tendency of a substance to undergo a chemical reaction.

A list of metals ordered by how vigorously they react.

A change where you can get back to the original substances.

A compound in which the hydrogen atoms of an acid are replaced by metal atoms.

An acid where all of the acid particles split up in water.

Reaction of aluminium with iron oxide to make aluminium oxide and iron.

Changes colour to show the pH of a solution. It is a mixture of dyes.

An acid in which only some of the acid particles split up in water.

A way of representing a chemical reaction using the names of reactants and products.

Reactions 1 (Activate Y7) - Glossary Flashcard Flashcards

Student preview

38 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Acid

Back

An acid is a solution with a pH value less than 7.

2.

FLASHCARD QUESTION

Front

Alkali

Back

An alkali is a soluble base.

3.

FLASHCARD QUESTION

Front

Base

Back

A substance that neutralises an acid – those that dissolve in water are called alkalis.

4.

FLASHCARD QUESTION

Front

Chemical Property

Back

How a substance behaves in its chemical reactions.

5.

FLASHCARD QUESTION

Front

Chemical Reaction

Back

A change in which atoms are rearranged to create new substances.

6.

FLASHCARD QUESTION

Front

Chemical Symbol

Back

A one- or two-letter code for an element that is used by scientists in all countries.

7.

FLASHCARD QUESTION

Front

Concentrated

Back

A solution is concentrated if it has a large number of solute particles per unit volume.

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