Fund. H - Chemical Equations

Fund. H - Chemical Equations - Fundamentals H Chemical...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Fundamentals: H Chemical Equations Chemical equations Describe the products and reactants of a chemical reaction Skeletal equation – the chemical formula for the reactants and products Balanced equation Ex. Fe 2 O 3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO 2 (g) Law of conservation of mass – matter is not created or destroyed Ex. So if we have 6 O in the reactants we need 6 O in the products Stochiometric coefficient – number multiplying the entire chemical formula Ex. What is the stochiometric coefficient for CO 2 ? 3 The stochiometric coefficient tells us the relative number of moles of each compound that reacts or is produced in a reaction Ex. For every 1 mole of Fe 2 O 3 consumed in this reaction 2 moles of Fe are produced State symbol (s) solid (l) liquid (g) gas (aq) aqueous solution How to balance an equation – use the chart method! Ex. Fe + S 8 FeS 8 Fe + S 8 8 FeS Ex. KClO 3 KCl + O 2 2 KClO 3 → 2 KCl + 3 O 2 Ex. Al + O 2 Al 2 O 3 2(2 Al + 1.5 O 2 Al 2 O 3 ) 4 Al + 3 O 2 2 Al 2 O 3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

Fund. H - Chemical Equations - Fundamentals H Chemical...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online