chem help (1 Viewer)

[ruffshod]

can someone please help me, im doing a chemistry assessment and i need help with the following questions

1. a) identify the relationship between the position of a metal in the activity series and its ease of extraction

b) Describe the relationship between the commercial prices of common metals, their actual abundance and relative costs of production. use two deifferent examples of metals as a comparison

2. a) describe the separation processes in the extraction of copper from one of its sulphide ores. include all relevant chemical equations involved in the separation processes.

b) discuss the relevant energy considerations for the extraction of copper

3. investigate the conditions under which explosions occur and relate these to the importance of collisions between reacting particles


thank you

 

[ohexploitable]

1. a) more reactive metals would form compounds with stronger bonds which require more energy to break and extract the metal, like it's harder to extract Al from AlO than Fe from FeO

b) less abundant metals have a higher demand vs supply and hence cost more, like Au costs a lot because it's rare, metals which cost more to produce obviously have a higher commercial price, like Al costs a lot because it's very costly to extract from it's ore

2. a) 2CuFeS₂ + 5O₂ +2SiO₂ --> 2Cu + 4SO₂ + 2FeSiO₃

cbf