Anti Essays offers essay examples to help students with their essay writing.

Sign Up

Chemistry-Related Essay

Open Document

Below is an essay on "Chemistry-Related" from Anti Essays, your source for research papers, essays, and term paper examples.

Chemistry 1
Question 1
1.1 The fundamental ideas in chemistry

Group 1 elements burn vigorously when heated in oxygen.
(a) Complete these diagrams to show the electronic structures of sodium and oxygen atoms. (2 marks)
(b) Write the word equation that describes the reaction between sodium and oxygen. (1 mark)
(c) Write the balanced equation for this reaction, including the state symbols. (3 marks)
(d) Why are the elements in group 0 unreactive? (1 mark)

Question 2
1.2 Limestone and building materials

When limestone is heated to make cement it first reacts to produce lime (calcium oxide).
(a) Write a word equation using chemical names for what happens when limestone is heated. (1 mark)
(b) Write the chemical formula for:
(i) limestone (1 mark)
(ii) lime (1 mark)
(c) Write a balanced equation with state symbols for what happens when limestone is heated. (2 marks)

Water reacts with lime to form slaked lime (calcium hydroxide).
(d) Write a word equation for this reaction using chemical names. (1 mark)
(e) Write a balanced equation with state symbols for this reaction. (3 marks)
(f) Farmers use slaked lime for liming the soil. Why is it necessary to lime some soils? (1 mark)

Question 3
1.3 Metals and their uses

Copper can be obtained from solutions of copper salts by electrolysis or by displacement using scrap iron. It can also be extracted by phytomining.
(a) Draw an arrow on the following reactivity series (reactivity decreases down the list) to show where copper should be placed. (1 mark)
(b) Write a word equation for the displacement of copper from copper sulfate solution by iron. (1 mark)
(c) Write a balanced equation with state symbols for this reaction. (3 marks)
(d) Explain why copper is produced at the negative electrode during electrolysis.
(2 marks)
(e) What is phytomining? (2 marks)
(f) Predict the method of extraction used to...

Show More


MLA Citation

"Chemistry-Related". Anti Essays. 13 Dec. 2018


APA Citation

Chemistry-Related. Anti Essays. Retrieved December 13, 2018, from the World Wide Web: http://parimatch-stavka7.com/free-essays/Chemistry-Related-311080.html

Rare Old natural lapis lazuli stone Snuff Bottle pendant netsuke Art noble gift | Abraham as the Ideal Man of Faith in The Holy Bible | 30.11.1805:28 Uhr Euro Truck Simulator 2 - Beyond the Baltic Sea*inklusive deutschem Untertitel* Simulation0 / 0364 Hits VID P2P DDL 0 Kommentare