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How do I balance C4H8 + O2 --> CO2 + H2O?

When balancing a reaction, you first want to count how many particles there are of each element on each side.You then want to try and make both sides the same for each element. In this case we're going to...

Answered by Aiman K. • Chemistry tutor

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Calculate the number of moles of carbon dioxide molecules in 11 g of CO2.

Use equation: mole=mass/mr Calculate Mr of CO2 = 44Moles= 11g/44= 0.25 moles

Answered by Mujahid R. • Chemistry tutor

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Polyester is a common polymer used in clothing. State the name of the chemical reaction used to form polyester by reaction of ethanedioic acid and ethane-1,2-diol. Give the name of the molecule which is lost upon condensation of these two molecules.

Name of reaction is condensation polymerisation.Water is lost upon condensation of ethanedioic acid and ethane-1,2-diol (will draw this out on the whiteboard).

Answered by Melissa W. • Chemistry tutor

3191 Views

Draw the electronic structure of Sodium Chloride and explain how an ionic bond affects the melting and boiling point.

Ionic bonds are very strong, with elements involved in a compound having a full outer shell of electrons due to donating and accepting electrons, allowing them to be in a very stable state. In this case, ...

Answered by Hans D. • Chemistry tutor

4537 Views

Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer. Give the formulae of the ions formed. (5 marks)

electrons, which are negative particles that are part of the atom, are transferred from potassium to sulfurtwo potassium atoms each lose one electron and they form K+ ions as they have lost negative charg...

Answered by Alisha M. • Chemistry tutor

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