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Chemistry
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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
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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
2417 Views

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 sp2 hybridi...

Answered by Chemistry tutor
1065 Views

Give the IUPAC name of CH3CH2CH2CH2CH(OH)CN and describe why the formation of this molecule creates 2 enantiomers.

The IUPAC name of CH3CH2CH2CH2CH(OH)CN is 2-Hydroxyhexanenitrile as its carbon chain is 6 carbons long (Hex). The nitrile group takes naming priority over the a...

Answered by Owen R. Chemistry tutor
15268 Views

An amino acid contains 52.2% carbon, 9.3% hydrogen, 8.7% nitrogen and 29.8% oxygen by mass and has a relative molecular mass of 161 g/mol. What is its molecular formula? What functional groups must it have?

In 100g of compound, the amount of each element is given by: C: n = 52.2/12 = 4.35 H: n = 9.3/1 = 9.3 N: n = 8.7/14 = 0.621... O: n = 29.8/16 = 1.8625 Dividing through by the smallest amount (0.621) gives...

Answered by Georgina B. Chemistry tutor
2216 Views

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