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Law Incorporation [45]
2 years ago
6

Which of the following materials fall in the category of a ‘‘pure substance’’?

Chemistry
1 answer:
pishuonlain [190]2 years ago
6 0

Answer:

1) <em>Ice, iron, calcium oxide and mercury</em> are <u>pure substances since they contain particles of only one kind of matter.</u>

2) <em>In contrast, milk, hydrochloric acid</em> (hydrogen chloride gas dissolved in water), brick and air cannot be called <u>pure substances because they consists of particles of more than one kind of matter.</u>

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Sort the following chemicals for their ability to act as an oxidizer. List from strongest to weakest; 1 being strongest, 6 being
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Answer : If we list the given chemicals according to their increasing oxidising ability then the order will be like this; 1 being the strongest and 6 being the weakest 
1. K > 2. Ca >3. Ni> 4. Cu> 5. Ag> 6.Au

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K has -2.92; Ca has -2.76; Ni has -0.23; Cu has 0.52; Ag has 1.50 and Au has 1.50.


7 0
3 years ago
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