We have learned about balancing chemical equations as well as assigning of state symbols.
Let’s look at some examination questions and my suggested solutions.
Q) Write balanced chemical equations for each of the following reactions. Include the State Symbols.
(a) calcium + chlorine –> calcium chloride
(b) hydrogen + nitrogen –> ammonia
(c) ethane (C2H6) + oxygen –> carbon dioxide + water
My Suggested Answer:
(a) Ca(s) + Cl2(g) –> CaCl2(aq)
(b) 3H2(g) + N2(g) –> 2NH3(g)
(c) 2C2H6(g) + 7O2(g) –> 4CO2(g) + 6H2O(l)
Related Articles:
- O-Level Chemistry: Assigning State Symbols in Chemical Equations
- O Levels Chemistry Questions – Mole Calculations / Mole Concepts
- O Level Chemistry Question: Chemical Bonding & Structural Properties
- O-Level Chemistry: 5 Rules to Assign Oxidation States (Redox Reactions)
- O Levels Chemistry – Selected Exam Questions
Balancing a redox reaction:what are the necessary steps?
I need some stoichiometry questions.
Your answer is correct, balancing in stoichiometri and right in symbolyzing.i think you should be a proffesor in basic concept of chemistry.
And thanks for your couraging emails. its make me survive in these difficult and bad people. hope you will always write more and more simple concept in chemistry for us.
best regards from the biochemist.