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Write an ionic equation, with state symbols, to show the reaction of calcium with an excess of water.

Ca(s)+ 2H2O(l) ---> Ca2+(aq) + 2OH– (aq) + H2(g) 

OM
Answered by Owais M. Chemistry tutor
13560 Views

What are the techniques used by the writer to arise the interest of the reader in terms of expression and discourse structure?

This question requires students to select examples of language use from a section of the text and  comment on the effect the language use has on the reader. To answer this question one might need to think...

PS
3789 Views

Which chemical would have a higher boiling point 1,3-dimethylbutane or hexane

Hexane would have the higher boiling point, due to the fact it's unbranched unlike 1,3-dimethlybutane, hexane would have more surface contact and hence more London forces acting upon it. As a result it wo...

TR
Answered by Talvin R. Chemistry tutor
2795 Views

Describe how to separate hydrocarbons of different lengths

Heat the oil up until it is a vapour Pass into fractionating column Negative temperature gradientHydrocarbons of different lengths have different boiling points They condense at different heights and are ...

MN
Answered by Mia N. Chemistry tutor
1942 Views

How does DNA replicate?

The first stage involves transcription within the nucleus, the gene of interest is unzipped from it's double helix by enzyme DNA helicase. once single stranded a piece of mRNA which is able to fit through...

TR
Answered by Talvin R. Biology tutor
2317 Views

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