Bonding and Structure
What is a hydrocarbon?
A compound which consists of hydrogen and carbon only.
What is relighting a glowing splint?
The positive test for carbon dioxide
These affect the rate of reaction. (at least 3 answers)
What is surface area, concentration, temperature, use of catalyst, pressure in gases?
The approximate percentages of the two most abundant gases in dry air.
78% Nitrogen, 21% Oxygen
-200
What are isotopes?
Atoms that have the same number of protons but a different number of neutrons.
True or false: ionic compounds usually can not conduct electricity when solid
false
The positive test for hydrogen.
a lighted splint and a squeaky pop
The CONDITIONS for the Haber process
iron/450/200ATM
ADD 500
What is electrolysis
the break down of ionic compounds when melton or dissolve in water by passage of electricity
-200
The electron configuration of oxygen
What is 2.8.6?
What is diamond/graphite?
Give 2 forms of carbon that have giant covalent bonding
-200
What is the bleaching of damp litmus paper?
The positive test for chlorine.
What is reduction?
This process involves gain of electrons
What is enthalpy change?
bond energy in reactants-bond energy in products
These gases are located to the right of the periodic table and are unreactive.
noble/inert gases
What is ductile?
A word meaning "the metal can be pulled into thin wires"
The positive test for ammonia.
What is damp red litmus paper turning blue?
The physical test and chemical used to find pure water. (2 answers)
What is boiling point at 100ºC/melting point at 0ºC
Anhydrous copper sulphate/cobalt chloride?
ADD 500
Complete the sentence:
In electrolysis, non-metals are produced at the ..... and hydrogen gas is produced at the ..........
anode....cathode
swap with highest
What is empirical formula?
The simplest whole number ratio of the different atoms or ions in a compound
swap with the lowest
What is the electrostatic force of attraction?
What is the electrostatic force of attraction?In ionic bonding, it is the force between the two oppositely charged ions.
Turning purple potassium manganate (VII) into a colourless solution, is the test for which gas?
sulfur dioxide?
+200
The products of photosynthesis
write the chemical and word equation
glucose and oxygen
-500
What is an electrolyte?
and write the half equation of electrolysis of conc. sodium chloride solution.
A substance that conducts electricity in molten state or in solution
What is a catalyst?
list the effect on the rate of reaction and the equilibrium by using the catalyst
A substance that increases the rate of reactions but isn't used up.