Top answers

Write a balanced half equation for the oxidation of Mn 2+ to MnO4 -

Mn 2+ + 4H 2 O => MnO ​​​​​ 4 - + 8H + + 5e -
AE
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What are the relative charges of the proton, neutron and electron?

The proton's relative charge is +1 The neutron's relative charge is 0 The electron's relative charge is -1.
AE
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Why does magnesium oxide have such a high melting point?

Metal and non metal so ionic bondingStrong electrostatic forces of attraction between the positive and negative ionsWhich require lots of energy to break
LH
Answered by Lia H. • Chemistry tutor
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Is a strong acid the same as a concentrated acid?

They sound like they should mean something similar! However, chemistry uses words very carefully, and these words have very specific meanings. Strong acids completely dissociate in water. Hydrochloric acid (...
KB
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a) State the electronic configuration of a chlorine atom. b) Describe the bonding and the phase of chlorine at room temperature.

a) 2.8.7 (A chlorine atom has 17 protons and therefore 17 electrons. The first shell holds 2 electrons, and those after hold 8 electrons) b) Chlorine exists as a diatomic molecule at room temperature. This m...
BR
Answered by Ben R. • Chemistry tutor
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