cbreazzy
11.05.2021 •
Social Studies
How can sodium chloride can be obtained when it mixed with copper (ii) oxide.
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Ответ:
Add water to the mixture of sodium chloride and copper(ii)oxide, sodium chloride will dissolve while copper(ii)oxide does not. Filter and heat the filtrate to dryness to obtain sodium chloride.
Explanation:
Ответ:
Yes,
Explanation:
Yes, both the shovel and pair of scissors are the examples of lever and wedge because its parts consist of lever and wedge. A Pair of Scissors is an example of a First Class lever also known as Double lever. The Fulcrum is the pivot present in the middle through which the scissors moves and the Force is applied with your hand at the end and the work will occur on the other end which to cut materials. The shovel is a third-class lever because the effort is present between the fulcrum and the load.