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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

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....

Answered by Katharina B. • Chemistry tutor

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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 temperatur...

Answered by Ben R. • Chemistry tutor

7605 Views

Balance the Following Equation: H2SO4 + NaOH ---> Na2SO4 + H2O

Balancing chemical equations requires the same quantity of products as reactancts. There are two atoms of H on the left and therefore two on the left; one SO4 on the left thus one on the right; however wh...

Answered by Christopher P. • Chemistry tutor

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1. Parabens are esters of 4-hydroxybenzoic acid (structure), give example of a paraben & draw other compound used to make it. 2. Suggest a possible use for parabens. 3. What type of hybridisation does the aromatic carbon adopt? 4. How do pi bonds form?

Eg. methyl/ethyl/propyl (etc.) paraben. Drawing of the alcohol used to make paraben. Possible uses: food preservative, cosmetic, or pharmaceutical use. The aromatic carbon atoms are sp²hybridi...

Answered by • Chemistry tutor

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