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Chemistry Vocabulary

Read the definition and type the term it defines.

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Quiz by arjaygee
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Last updated: November 27, 2023
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First submittedNovember 25, 2023
Times taken877
Average score44.0%
Rating4.33
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Hint
First
Letter
Answer
The lowest possible temperature, at which, theoretically, atoms stop moving.
A
Absolute zero
Any compound which yields H+ ions (protons) when dissolved in water.
A
Acid
Any of the soft, light, reactive metals of Group 1 of the periodic table.
A
Alkali metal
Any of a class of generally water-soluble compounds, having bitter taste, that turn red litmus blue, and react with acids to form salts.
B
Base
A chemical compound composed of only two elements.
B
Binary compound
The energy that holds protons and neutrons together in the atomic nucleus.
B
Binding energy
The science of measuring the heat absorbed or evolved during the course of a chemical reaction or change of state.
C
Calorimetry
A substance that increases the rate of a chemical reaction without being consumed in the process.
C
Catalyst
To add something to (ethanol) that makes it unsuitable for consumption but leaves it suitable for most other purposes.
D
Denature
The movement of particles from an area of higher concentration to one of lower concentration.
D
Diffusion
A solution that has had additional solvent, such as water, added to it into order to make it less concentrated.
D
Dilution
The process by which a compound body breaks up into simpler constituents.
D
Dissociation
The process of gases passing through a hole or holes considerably smaller than the mean free path of the gas molecules.
E
Effusion
A substance that, in solution or when molten, ionizes and conducts electricity.
E
Electrolyte
A globular protein that catalyses a biological chemical reaction.
E
Enzyme
(of a reaction) That releases energy in the form of heat.
E
Exothermic
In the International System of Units, the base unit of thermodynamic temperature.
K
Kelvin
The quantity of matter which a body contains, irrespective of its bulk or volume.
M
Mass
Any particle in the nucleus of an atom.
N
Nucleon
A row in the periodic table of the elements.
P
Period
The number of significant digits to which a value may be measured reliably.
P
Precision
A chemical reaction which can go both ways: reactants make products and products make reactants.
R
Reversible reaction
A liquid (or a gas) that dissolves a solute in solution.
S
Solvent
The unique temperature and pressure at which the solid, liquid and gas phases of a substance are all in equilibrium.
T
Triple point
The smallest repeating structure (parallelepiped) of atoms within a crystal, from which the structure of the complete crystal can be inferred.
U
Unit cell
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2 Comments
EconomicSnake
+1
Level 71
Nov 27, 2023
Fun quiz! But wouldn't "neutron" another acceptable answer for the "N" clue? Maybe change the first word to "any".
arjaygee
+1
Level 69
Nov 27, 2023
You are absolutely right. Definition updated.

Thanks for taking the time to provide feedback.

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