The Great Chemistry Quiz
The quiz is filled with questions on pH of acids, electroplating, isotopes, chromatography and chemical reactions. 30 Questions.
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What is an isotope?
An element with the same number of protons but different number of neutrons.
An element with free electrons when the element is molten.
A giant covalent structure with free ions in between the lattices.
A number of protons being higher than the number of electrons.
What is the pH of an acid?
pH 3 - pH 7
pH 12 - pH 18
pH 5 - pH 12
pH 1 - pH 6
What are ammonium salts used for?
What is meant by the term mole?
The relative formula mass of a substance in grams.
The coating an object with a thin layer of metal by electrolysis.
Giant structures and macromolecules which have strong bonds.
What acid is needed to produce ammonium nitrate?
The atmosphere of Venus contains droplets of sulphuric acid solution, suggest a pH value for this?
What salt is made when magnesium reacts with hydrochloric acid?
Why is cryolite used in aluminium extraction?
Lowers temperature required to do electrolysis.
Cryolite ore is the world's main source of aluminium.
Cryolite is added to electrolysis to expand the ore's surface area.
The ore is made up of fifty percent aluminium and silver.
How many electrons can there be on the atom's first energy level?
What are the products of the reaction between an acid and an alkali?
Salt and Water
Alkene and Bromine
Bile and Protease
Glycerol and Starch
What is Crystallisation?
A way to increase the rate of reaction.
A way to obtain free electrons from a lattice by the use of electrolysis.
A method to separate dissolved solids from a solution.
A method to neutralise acids and alkalies.
What is a catalyst?
A substance which increases the rate of reaction without itself undergoing chemical change.
A precipitate which involves the binding of atoms.
A specific biochemical reaction.
A place where reactions take place.
What is a catalytic converted made of?
A steel frame made of layers.
A glass lattice with space for filtration.
A platinum, or a platinum like metal.
A radium isotope.
What is the word equation for fermentation?
Glucose + Yeast ---> Carbon Dioxide + Ethanol
Hydrogen + Chlorine ---> Hydrogen Chloride
Ethane + Oxygen ---> Carbon Dioxide + Water (+Energy)
Iron + Copper Sulphate ---> Iron Sulphate + Copper
What is Oxidation?
Oxidation is loss.
Oxidation is limit.
Oxidation is lipid.
Oxidation is liquefaction.
What is the process of splitting hydrocarbons for more useful products?
The higher up the fractional distillation column the smaller the molecules, low boiling point and what else?
Not very volatile.
Hard to ignite.
What hydrocarbon is first to leave the fractional distillation column?
What makes nearly all Noble Gases unreactive?
They are not chemically inert.
They have equal amounts of neutrons and electrons.
They all have a full outer shell.
They are colourless.
What is an example of a food emulsifier?
Mayonnaise is an emulsion of oil and what else, the emulsion can become more stable by the use of an emulsifier with a hydrophilic and hydrophobic end?
What is the name of the aluminium ore?
What is another name for a polymer?
What is the process that turns monomers into polymers, monomers are small molecules, which when bidden together form a polymer?
What is compaction in the Rock Cycle?
This is when rocks heat and expand in the heat of the day.
The break down of rock into smaller pieces.
Deposits of sediment, under pressure are being crushed by weight of above sediment.
Rocks which are viscous cause water to stay in the cracks, in freezing temperatures the ice expands.
What is the name of rocks which form from the cooling of lava?
What is the name for the industrial manufacture of Ammonia from Nitrogen and Hydrogen Gas?
In a reaction going from reactions of products, what is it called when heat is given out?
How many of Carbon's electrons are used for covalent bonding in a layer structure?
The element Argon has eighteen electrons, what is its electron structure?
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