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Chemistry
GCSE

Using a reaction as an example, explain why bromine is more reactive than iodine in terms of electrons.

bromine + sodium iodide --> sodium bromide + iodineBr2 + 2NaI --> 2NaBr + I2 Both bromine and iodine atoms have 7 electrons in their outer shells, a full shell contains 8 elect...

Answered by Vasudha S. Chemistry tutor
19543 Views

write a balanced equation of the reaction between sodium and oxygen

2Na + O > Na2O

Answered by erica b. Chemistry tutor
2537 Views

Explain how a compound such as Magnesium Oxide has a high melting point and conducts electricity when molten

A substantial amount of energy is required to break the strong ionic bonds between the ions Mg^2+ and O^2-. While in a solid state the molecular structure is rigid and does not have any free or mobile ele...

Answered by Jack J. Chemistry tutor
8518 Views

Calculated the Relative Molecular Mass of calcium (II) chloride using the periodic table.

Calcium (II) has a charge of 2+ and each chloride has a -1 charge giving a formula of CaCl2 when balancing the charges out. Ca (Relative Atomic Mass) = 40.08 and Cl (Relative Atomic Mass) = 35.45So Relati...

Answered by Gabriel L. Chemistry tutor
6481 Views

What is the difference between and Alkane and an Alkene

Both are molecules which contain only Carbon and Hydrogen moleculesAlkanes do not contain any carbon - carbon double bonds - all bonds are single - therefore the molecules is known as saturated the empiri...

Answered by Jess O. Chemistry tutor
1613 Views

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