An element is a substance made from only one type of atom (e.g. oxygen is an element made up of only oxygen atoms).
An atom is the simplest form of an element that can exist, such as a lithium atom (Li).
Atoms of different elements can be combined together to create compounds, e.g sodium oxide (Na2O).
A molecule is a combination of 2 or more atoms that form chemical bonds. When these atoms are of the same element, they can be called molecules (e.g. O3 - ozone).
However when a molecule is made up of atoms of different elements, they are classified as compounds (e.g. CO2 - carbon dioxide).
So all compounds are molecules, but not all molecules are compounds.
A) Compounds because its the other word of the formation of new substances!
Answer:
magnesium oxide molecules
Explanation:
this is because the two is before the formula of MgO
Answer: Oxide Zinc
Explanation:
Zinc react with oxygen to produce oxide zinc. This reaction takes place at a temperature of over 225°C.
Source: https://chemiday.com/en/reaction/3-1-0-949