Creado por Lauren Crawford
hace más de 9 años
|
||
0 | ||
0 | ||
0 | ||
0 | ||
0 |
There are no comments, be the first and leave one below:
What is a compound?
What does chemical bonding involve?
What is formed by transferring electrons?
What is formed when you lose electrons?
What is formed when you gain electrons?
Ions have the electronic structure of...
The elements in Group 1, the (a), all react with (b) elements to form (c) in which the metal ion has a single (d) charge
The elements in Group 7, the (a), all react with the (b) metals to form (c) in which the halide ions have a single (d) charge
What is an ionic bond?
In ionic bonding the forces....
What is covalent bonding?
What is a macromolecule?
True or false: metals consist of giant structures of atoms arranged in an irregular structure
Why can metals conduct electricity?
Substances that consist of simple molecules are gases, liquids or solids that have relatively ________ melting and boiling points
Substances that consist of simple molecules have....
Why do substances that consist of simple molecules not conduct electricity?
Why do ionic compounds have high melting and boiling points?
Why can ionic compounds only conduct electricity when melted or dissolved in water?
Give an example of giant covalent structures
Why do macromolecules have high boiling points?
Why is diamond very hard?
Why is graphite soft and slippery?
Why can graphite conduct electricity?
What is a fullerene?
What can fullerenes be used for?
Why are metals malleable?
What is an alloy?
Why are alloys harder than pure metals?
What is a shape memory alloy?
Thermosoftening polymers consist of...
Thermosetting polymers consist of...
One nanometre is..
The mass of a proton = ?
The mass of a neutron = ?
The mass of an electron = ?
What is the mass number?
What is an isotope?
What is meant by the term 'relative atomic mass'?
What is the relative formula mass of a compound?
What is one mole of a substance?
Advantages of instrumental methods of analysis
What is chemical analysis used to identify?
What can paper chromatography identify?
Explain the process of gas chromatography
What do the number of peaks on the output of a gas chromatograph show?
What does the position of the peaks on the output indicate?
Advantages of a mass spectrometer
What gives the molecular mass?
What does gas chromatography allow?
What can help identify a substance in GC-MS?
What is the equation to find the percentage of an element in a compound?
Reasons for less than 100% yield
Equation for percentage yield
Equation to find rate of reaction
What is activation energy?
What effect does increasing the temp have on a reaction?
What effect does increasing the pressure of reacting gases have on a reaction?
What effect does increasing the concentration have on a reaction?
What effect does increasing the surface area have on a reaction?
What is a catalyst?
Advantages of catalysts in industry
Disadvantages of catalysts in industry
When chemical reactions occur, energy is __________ to or from the surroundings
What is an exothermic reaction?
Examples of exothermic reactions
Everyday uses of exothermic reactions?
What is an endothermic reaction?
Example of an endothermic reaction?
Everyday use of endothermic reactions
If a reversible reaction is exothermic in one direction,.....
What are the 4 state symbols?
Soluble salts can be made from acids by reacting them with....
What is a salt?
What can be used to show when an acid and alkali have reacted completely?
Salt solutions can be __________ to produce solid salts
Metal oxides and hydroxides are....
Soluble hydroxides are called.....
The particular salt produced in any reaction between an acid and a base depends on:
Ammonia dissolves in water to produce...
Ammonia solution is used to produce...
Ammonium salts are good for ....
The pH scale us a measure of the _____ or______ of a solution
Hydrogen ions, H+(aq), make solutions______
Hydroxide ions, OH-(aq), make solutions_______
In neutralisation reactions, _________ ions react with _________ ions to produce _______
Why would an ionic substance be melted or dissolved in water? (electrolysis)
What happens when you pass an electric current though an ionic substance that is molten? What is this process called?
What is the substance that is broken down by electrolysis called?
What is electrolysis used for?
At the negative electrode, ________ charged ions _____ electrons
At the positive electrode, _______ charged ions ______ electrons
What does OIL RIG stand for?
If there is a mixture of ions, the products formed depend on the ________ of the elements involved
Aluminium is manufactured by the electrolysis of a molten mixture of ___________ and __________
Aluminium forms at the ______ electrode
Oxygen forms at the ______ electrode
The electrolysis of sodium chloride solution produces......
Why is cryolite used in the extraction of aluminium?
Describe the physical properties you would expect an ionic substance to have
Explain how diamond's structure is different from graphite and fullerenes
Give one industrial use for sodium hydroxide