chemical compounds Flashcards
how are compounds formed
Compounds are formed when atoms of different elements join together
give an simple example of a compound
water
Describe the difference between an element and a compound.
An element is a pure substance that is made from a single type of atom. A compound is a substance formed when two or more different elements are chemically bonded together.
What is meant by the term molecule?
A molecule is a group of atoms joined together.
if a chemical formula is C6H12O6
how many elements of each
(the numbers would be small if you were writing it)
6 Carbon atoms, 12 Hydrogen atoms and 6 Oxygen atoms.
Describe the appearance of magnesium.
Magnesium is a silver, dull metal.
give one way of how you can make atoms join together
you can heat both elements over a roaring blue flame and that will give the element enough energy to join together
Describe briefly how electrolysis works.
Electrolysis uses electricity to break a compound into the elements it is made of.
In many compounds, the atoms join together in groups called……
molecules.
Some compounds end in -ate or -ite. usually how many elements are in the compound
3
