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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

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Calculate how many protons, electrons and neutrons there are in:a) A silver atom with atomic number 47 and mass number 108

Answer: Protons = 47 Electrons = 47 Neutrons = 61Explanation: An atom contains equal numbers of protons and electrons. Atoms have no overall electrical charge because the number of positive protons equals...

Answered by Anish K. • Chemistry tutor

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write a balanced equation of the reaction between sodium and oxygen

2Na + O > Na₂O

Answered by erica b. • Chemistry tutor

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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

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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

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