Here you can find OCR Gateway past papers for GCSE chemistry. Use the links below to download question papers and mark schemes. If you’re unsure whether you need Foundation or Higher papers, consult ...

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds. Now a study has revealed a strange variety of bond that acts like a hybrid of the two. Its properties raise ...

Try this quiz based on GCSE Chemistry past papers. Choose the topic you would like to revise and answer the questions. By working your way through the science questions created by experts, you can ...

NO SCHOOL chemistry textbook is complete without a detailed enumeration of the basic types of chemical bond: covalent, ionic and metallic. And for good reason, because bonds are the glue that binds ...

The covalent bonds that hold complex molecules together can come in different forms. Atoms like carbon, nitrogen, and oxygen can form both single and double bonds, sharing two or four electrons.

The carbon-hydrogen bond -- 2/3 of all bonds in hydrocarbons -- has defied chemists' attempts to open it up and add new chemical groups. A team has now cracked the strongest of C-H bonds, those on a ...