What shows which elements are in a compound and their ratios?

Answer 1

a chemical formula tells what elements make up a compound and the ratios of the atoms of those elements.

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Answer 2

The chemical formula of compound reveals which elements it features and their respective ratios. A visual representation of the arrangement of atoms in a compound is called the structural formula.

Answer 3

The empirical formula gives the simplest ratio of the elements in a compound, but does not necessarily give the actual number of each element.

For instance the empirical formula of water is H2O - two hydrogens for each oxygen - and each molecule does actually contain two hydrogen atoms and one oxygen atom. But in the case of glucose, the empirical formula is CH2O - two hydrogens for each carbon and oxygen - but the molecule actually contains six carbons, twelve hydrogens and six oxygens.

Answer 4

The compound's chemical formula. For example, MnO2 is manganese dioxide.

Look for the capitalised alphabetic characters first. In this case they are 'M' and 'O'. These characters introduce groups of characters that represent one element. So we have, in this case:

• Mn
• O2

If there is a number after the alphabetic characters then that is the number of atoms of that element, otherwise the number of atoms is one.

Assuming that you don't recognise the symbol for an element, you refer to the Periodic Table, given in the link. Mn stands for manganese, O for oxygen.

Answer 5

A formula shows constituent elements and their ratios. In the formula Al2O3, you can see aluminum and oxygen bonded in a 2-3 ratio.

Answer 6

Chemical Formula

Answer 7

chemical formula :D

Answer 8

a chemical formula

Answer 9

chemical formula