Fechar
what two types of atoms are involved in IONIC bonding?
in IONIC bonding, which atom loses electrons to becomes POSITIVELY charged?
what does OIL RIG stand for?
what two atoms are involved in COLVALENT bonding?
what is limestone made of?
what does LIMESTONE form when THERMALLY DECOMPOSED?
when acid is added to CALCIUM CARBONATE, what is formed?
what is produced when you react CALCIUM OXIDE with WATER?
what is the test for CARBON DIOXIDE?
why in the test for CARBON DIOXIDE does the limewater become cloudy?
how is cement made?
how is mortar made?
how is concrete made?
what are the cons of quarrying limestone?
what are the pros of quarrying limestone?
what are the advantages of limestone products?
what are the disadvantages of limestone products?
what is an ore?
why might the economics of metal extraction change over time?
what are the two different methods of extracting metal?
how can you extract copper with reduction?
why is electrolysis often used instead for copper extraction?
what is electrolysis?
what is an electrolyte?
what is an electrolyte usually made of?
how does the electrolyte conduct the electricity?
which electrode take electrons away and which electrode gives electrons?
what is another method of extraction, beside electrolysis and reduction?
why is scrap iron often used in copper displacement reactions?
what are two different methods of extracting copper from the ground?
what is bioleaching?
what is phytomining?
why is recycling metals important?
what properties do metals have?
what are the two major problems with metals?
how does an alloy make a metal harder?
what is bronze made of and what is it used for?
what is cupronickel made of and what is it used for?
what metals can be added to gold to make it better suited for jewellery?
what is a mixture?
what are hydrocarbons?
how are different hydrocarbon chains fractioned off using a fractional distillation column?
what are alkanes?
what are the properties of alkanes?
why is crude oil so important?
what are the issues involved with crude oil supplies
what are the three main sources of alternate energy that we use?
how does crude oil affect the environment?
what are the problems with burning fossil fuels?
what happens when there is not enough oxygen in the combustion reaction - partial combustion?
what happens when sulphur dioxide is released into the atmosphere?
what are the issues with acid rain?
how can sulphur emissions be controlled?
how do particles cause global dimming?
what are three alternate fuels used for cars?
what are the pros and cons of ethanol?
how is ethanol made?
what is bio-diesel?
what are the pros and cons of biodiesel?
how is hydrogen made?
what are the pros and cons of hydrogen gas?
