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Chemistry
GCSE

What is a titration reaction in acid-base chemistry?

A titration reaction is used to calculate the conentration of an acid or alkali. The two solutions are combined, one of known and one of unknown concentration. When combined the hydrogen ions from the aci...

Answered by Hatem S. Chemistry tutor
2347 Views

How to balance equations

Write out all the atoms that are in the equation, underneath. Then always balance the carbons first, leave the others for later. Then do the hydrogens and then the oxygens. This method is for simple equat...

Answered by Kajal R. Chemistry tutor
1958 Views

Describe the structure and bonding of sodium chloride.

Sodium chloride has a giant ionic lattice structure with ionic bonding. There are electrostatic forces of attraction between the Na+ ions and the Cl- ions.

Answered by Amy S. Chemistry tutor
7902 Views

Coal is a fossil fuel and in constant debates for its negative impacts on the environment. Which elements does it consist of and which products are being formed when it is burned? Give two examples for the effects on the environment.

(a) Coal contains  Carbon (80%) Sulfur (9%) Oxygen (5%) Hydrogen (1%) other elements (5%) (b) Carbondioxide (CO2) Sulfurdioxide (SO2) Water  (H2O) (c)  Carbon dioxide: Global warming (green house effect) ...

Answered by Thea P. Chemistry tutor
2125 Views

Why is a percentage yield never 100%?

There are a few reasons why percentage yield will never be 100%. This could be because other, unexpected reactions occur which don't produce the desired product, not all of the reactants are used in the r...

Answered by Alex B. Chemistry tutor
49177 Views

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