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In terms of electrons, what happens when magnesium atoms react with oxygen atoms to produce magnesium oxide?

Magnesium loses two electrons which are transferred to the oxygen atom (so oxygen gains two electrons). In this way, both magnesium and oxygen will acheive a stable full outer shell of electrons. The elec...

Answered by Reka K. • Chemistry tutor

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What is an isotope?

Atoms of the same element with different numbers of neutrons

Answered by Bella S. • Chemistry tutor

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How many moles are in 6g of carbon?

moles = mass/mrn = 6/12n= 0.5

Answered by Lucy O. • Chemistry tutor

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Describe a simple way to distinguish between aqueous solutions of potassium nitrate (KNO3) and potassium sulfate (K2SO4) using one test tube reaction

Add one of the following: barium chloride, barium hydroxide, barium nitrateObservation with potassium nitrate: colourless solution/ or no visible change or reaction) Observation with potassium sulfate: wh...

Answered by Rebecca S. • Chemistry tutor

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What is Ionisation Energy and the three factors that affect it? 2)State and explain the general trend in first ionisation energies for the Period 3 elements.

Ionisation energy is the energy required to remove 1 mole of electrons from each atom in 1 mole of gaseous atoms to form 1 mole of gaseous ions.For...

Answered by Kadambari R. • Chemistry tutor

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