C1 Keywords

Mole (4) - C1:4

A measure of a chemical amount.

Chemical reaction (4) - C1:4

Where bonds between atoms are broken, the atoms are rearranged and new bonds are formed to make a new product.

(3) - C1:3

Relative Formula Mass (3) - C1:3

Extended writing (3) - C1:3

explain why covalent substances do not conduct electricity.

Mixture (2) - C1:2

Balanced equation (2) - C1:2

Percentage atom economy (2) - C1:2

Covalent bond (2) - C1:2

A chemical bond formed between non-metal atoms, which combine together by sharing electrons.

Molecule (2) - C1:2

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

Compound (2) - C1:2

A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule.

Reactivity (2) - C1:2

How likely an element is to react and form a compound

Gas (2) - C1:2

One of the states of matter with the most amount of energy.

Melting point (2) - C1:2

The temperature at which a change of state occurs from a solid to a liquid.

Mass number (2) - C1:2

Total number of protons and neutrons in an element.

Group (2) - C1:2

a collection of elements found in the same column of the periodic table with similar properties.

Electron (2) - C1:2

a negatively charged sub-atomic particle found in the electron shells (energy levels) of an atom with a negligible mass.

Proton (2) - C1:2

a positively charged sub-atomic particle found in the nucleus of an atom with a mass of 1.

Lattice (2) - C1:2

a regular repeated three-dimensional arrangement of atoms, ions, or molecules in a metal or other crystalline solid.

Neutron (2) - C1:2

a sub-atomic particle that has no overall charge found in the nucleus of an atom with a mass of 1.

Solute (2) - C1:2

a substance that will dissolve

Ion (2) - C1:2

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Graphite (2) - C1:2

each carbon atom is only covalently bonded to three other carbon atoms, rather than to four as in diamond. Graphite contains layers of carbon atoms. The layers slide over each other easily because there are only weak forces between them, making graphite slippery.

Ionic compound (2) - C1:2

is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding

Metallic bond (2) - C1:2

is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

Element (2) - C1:2

made up from only one type of atom.

electrons (2) - C1:2

negative subatomic particle, mass of 0, charge -1

boiling point (2) - C1:2

temperature at which a substance changes state from a liquid to a gas

Atomic number (2) - C1:2

the number of protons found in the nucleus of an atom of an element.

Electrostatic attraction (2) - C1:2

the phenomenon where a negatively charged atom or molecule is attracted to a positively charged atom or molecule

Concentration (2) - C1:2

the relative amount of a particular substance contained within a solution or mixture or in a particular volume of space.

Atom (2) - C1:2

the smallest constituent unit of ordinary matter.

Insoluble (2) - C1:2

will not dissolve in a solvent

Atom Economy (1) - C1:1

Metallic bonding is the strong attraction between closely packed positive metal ions and a 'sea' of delocalised electrons. (1) - C1:1

This is why metals have high melting points and boiling points. (1) - C1:1

Working with nanoparticles is called nanotechnology.nanometre, 1 nm, is one billionth of a metre (or a millionth of a millimetre) (1) - C1:1

Giant Ionic (1) - C1:1

reaction (1) - C1:1

chemical (1) - C1:1

atoms (1) - C1:1

Concent (1) - C1:1

EW_Describe how to carry out titrations using strong acids and strong alkalis only (sulfuric, hydrochloric and nitric acids only) to find the reacting volumes accurately_ (1) - C1:1

Yield (1) - C1:1

Mass (1) - C1:1

The limiting reagent (or limiting reactant, LR) in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete. The amount of product formed is limited by this reagent, since the reaction cannot continue without it (1) - C1:1

Reaction Profile (1) - C1:1

Energy (1) - C1:1

Avogardo Constant (1) - C1:1

Pressure (1) - C1:1

Reactants (1) - C1:1

Gases (1) - C1:1

Nanoscience (1) - C1:1

Volume (1) - C1:1

molar (1) - C1:1

Products (1) - C1:1

Reversible (1) - C1:1

Chemical Reaction (1) - C1:1

peptide bond (1) - C1:1

A bond created between two amino acids.

Ionic bond (1) - C1:1

A chemical bond formed by the electrostatic attraction of oppositely charged ions. Formed between a metal and non-metal.

Oxidation (1) - C1:1

A chemical reaction where metals gain oxygen and looses electrons.

Redox (1) - C1:1

A chemical reaction where substances are reduced and oxidised simultaneously.

Dot cross diagram (1) - C1:1

A diagram used to represent the transfer of electrons in a chemical bond.

Metal carbonate (1) - C1:1

A metal that contains carbon and oxygen.

molecules (1) - C1:1

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.

polypeptides (1) - C1:1

A polymer made of amino acids.

Ratio (1) - C1:1

A ratio is a way to compare amounts of something

polymerisation (1) - C1:1

A reaction between monomers to create polymers.

Thermal decomposition (1) - C1:1

A reaction in which a substance is broken down into at least two other substances by heat

monomer (1) - C1:1

A small unit component that can be used to make a polymer.

Neutral (1) - C1:1

A substances that has a pH of 7. Equal number of OH- and H ions

Relative formula Mass (1) - C1:1

A total of all the atomic mass values for all the atoms in a formula.

Activation Energy (1) - C1:1

Amount of energy required for a reaction to occur

Alloy (1) - C1:1

An alloy is a mixture of two elements, one of which is a metal. substance made of a metal bond

Negative ion (1) - C1:1

An atom that has gained an electron.

Positve ion (1) - C1:1

An atom that has lost an electron.

Unreactive (1) - C1:1

An element that does not form compounds with other elements

base (1) - C1:1

Bases are substances that react with acids and neutralise them.

Covalent (1) - C1:1

Bonding between two non metals.

Covalent bonding (1) - C1:1

Bonding occurs between two non metals

Ionic bonding (1) - C1:1

Bonding that occurs between a metal and a non metal.

Endothermic (1) - C1:1

Chemical reaction that results in the surroundings temperature decreasing

Exothermic (1) - C1:1

Chemical reaction that results in the surroundings temperature increasing

DNA (1) - C1:1

Deoxyribonucleic acid.

Diamond (1) - C1:1

Diamond has a giant molecular structure. Each carbon atom is covalently bonded to four other carbon atoms.

Delocalised (1) - C1:1

Electrons are free to move.

GF (1) - C1:1

Explain why pure water does not conduct electricity but tap water does conduct electricity.

Carbonate (1) - C1:1

Group that contains carbon and oxygen (CO3)

Alkenes (1) - C1:1

Hydrocarbons that contain double bonds.

alkali (1) - C1:1

If a base does dissolve in water, it is called an alkali

Sodium Chloride (1) - C1:1

Ionic Compound

lattice (1) - C1:1

Ionic compounds have regular structures in which there are strong electrostatic forces of attraction in all directions between oppositely charged ions.

Condensation reaction (1) - C1:1

Losing water during a reaction.

Polymer (1) - C1:1

Made of chain of chemically bonded monomers.

Metal Oxide (1) - C1:1

Metal that contains Oxygen

amine group (1) - C1:1

NH2

Nanoparticles (1) - C1:1

Nanoparticles, are smaller than fine particles (PM2.5), which have diameters between 100 and 2500 nm

Conservation of Mass (1) - C1:1

No atoms are lost or made during a chemical reaction. This means that the mass is always conserved.

Polymers (1) - C1:1

Produced when monomers react.

Extraction (1) - C1:1

Removal of a useful substance from a compound

Limiting factor (1) - C1:1

Search Results

Simple molecule (1) - C1:1

Simple molecules contain only a few atoms held together by covalent bonds.

Fullerenes (1) - C1:1

The fullerenes are a large class of allotropes of carbon and are made of balls, 'cages' or tubes of carbon atoms. Buckminster fullerene is one type of fullerene.

mole (1) - C1:1

The mole is the unit of measurement for amount of a substance

Metallic bonding (1) - C1:1

The particles in a metal are held together by metallic bonds.

Monomer (1) - C1:1

The smallest unit of a polymer.

Surface area (1) - C1:1

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

Volume ratio (1) - C1:1

The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects.

Boiling Point (1) - C1:1

The temperature at which a change of state occurs from a liquid to a gas.

atomic number (1) - C1:1

The total number of protons in an element.

Conduction (1) - C1:1

Transfer of electricity or thermal energy.

intermolecular forces of attraction (1) - C1:1

Weak forces between the molecules

Balancing equations (1) - C1:1

When the total number of atoms in the reactants equals the total number of atoms in the products.

Balanced equations (1) - C1:1

When the total number of atoms in the reactants equals the total number of atoms in the products.

Particles (1) - C1:1

You can use the idea of particles to explain the properties of solids, liquids and gases.

Aqueous (1) - C1:1

a solution of solute and water solvent

Acid (1) - C1:1

a solution that contains H ions

Hydroxide (1) - C1:1

a solution that contains OH- ions

Chemical symbol (1) - C1:1

a symbol used to represent each element in the periodic table that is recognised across the world.

non-metal (1) - C1:1

accept electrons to form compounds

neutralisation (1) - C1:1

acid base --> salt water

Isotope (1) - C1:1

an atom of the same element with the same number of protons but a different number of neutrons.

Delocalised electrons (1) - C1:1

are electrons in a molecule, ion or solid metal that are not associated with a single atom

electrostatic forces of attraction (1) - C1:1

attraction in all directions between oppositely charged ions.

Condense (1) - C1:1

change in state from gas to liquid.

Evaporation (1) - C1:1

change in state from liquid to gas.

properties (1) - C1:1

characteristics of a substance

Giant covalent (1) - C1:1

contain a lot of non-metal atoms, each joined to adjacent atoms by covalent bonds. The atoms are usually arranged into giant regular

metals (1) - C1:1

donates electrons to form compounds

stable (1) - C1:1

elements that are not reactive because they have a full outside shell of electrons

Metals (1) - C1:1

elements that donate electrons to form compounds

oxidation (1) - C1:1

gain of oxygen and loss of electrons.

Halogens (1) - C1:1

group of elements in group 7 with similar properties

Salt (1) - C1:1

ionic compound formed by a metal and a non metal

Ball and stick model (1) - C1:1

is a molecular model of a chemical substance which is to display both the three-dimensional position of the atoms and the bonds between them

Electronic structure (1) - C1:1

is the state of motion of electrons in an electrostatic field created by stationary nuclei.

Solvent (1) - C1:1

liquid that a solute can be dissolved in

Reduction (1) - C1:1

loss of oxygen and gain of electrons

elements (1) - C1:1

made up of one type of atom

volume (1) - C1:1

measure of amount in cm3, mL or dL.

Excess (1) - C1:1

more chemical than required for the reaction to go to completion.

anion (1) - C1:1

negatively charged ion

Liquid (1) - C1:1

particles are close together and arranged and move in a random way.

Solid (1) - C1:1

particles packed tightly together and are arranged in a regular pattern and vibrate around a fixed point.

physical properties (1) - C1:1

physical characteristics of elements

cation (1) - C1:1

positively charged ion

Distillation (1) - C1:1

process that can be used to separate a pure liquid from a mixture of liquids.

non metal (1) - C1:1

proton acceptor during ionic bonding

metal (1) - C1:1

proton donor during ionic bonding

pattern (1) - C1:1

similar properties or characteristics

State of matter (1) - C1:1

solids, liquids and gases are called the three states of matter.

Aqueous solution (1) - C1:1

solution in which water is a solvent.

Medium (1) - C1:1

state of matter such as solid, liquid or gas.

Catalyst (1) - C1:1

substance which speeds up a chemical reaction without being used up itself.

melting point (1) - C1:1

temperature at which a substance changes state from a solid to a liquid

Relative atomic mass (1) - C1:1

the average mass of an atom when taking into consideration the proportions of the different isotopes of an element.

Radius (1) - C1:1

the distance from the centre to the circumference of a circle or sphere.

Boiling point (1) - C1:1

the point at which particles have enough energy to overcome the intermolecular forces holding them together.

Energy level (1) - C1:1

the shells that electrons are arranged into around the nucleus of an atom with the innermost shell being the lowest energy level.

Noble gases (1) - C1:1

unreactive group of elements

solutions (1) - C1:1

where substances are dissolved in water

Shielding (1) - C1:1

where the attraction from the nucleus is decrease as the shells are further away

Soluble (1) - C1:1

will dissolve in a solvent