Compounds Flashcards
Draw two different types of compounds?
In ur book
How many naturally occurring elements are there?
92
Name three different compounds?
Carbon dioxide, water and glucose
What are three differences between compounds and mixtures?
Mixtures are not joined together, compounds are elements joined in a set ratio and mixtures are easily separated
What do the prefixes mono, di, tri and tetra mean?
One, two, three and four
What is the chemical formula for carbon tetrachloride?
CCl4
What is NaCl?
Sodium chloride with two atoms
Which elements and in which ratio make up the compound Fe2O3?
Iron and oxygen in the ratio 2:3
Draw two different types of mixtures?
In ur book
What is a compound?
A substance containing atoms of two or more elements joined together by chemical bonds, containing a fixed chemical formula and specific sets of properties
How can atoms in compounds be arranged?
As either molecules or lattices
What are most of the substances around us made out of?
More than one type of atom
Why is water a compound?
Because it is made out of atoms of hydrogen and oxygen, chemically combined
What are elements in compounds always combined in?
Fixed proportions
What does a compounds chemical formula tell you?
It’s elements and proportion
