Answer:
In both cases, the gas evolved is H2. When calcium reacts with water the heat evolved is not suffcient for hydrogen to catch fire. On the other hand, sodium metal reacts with water violently and in this case a lot of heat is evolved which is sufficient for hydrogen to catch fire.
Explanation:
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Answer:
the action or process of filtering something.
because 72:96 is an equivalent of 12:16 and that if you multiply 12 times 6 you get 72 and if you multiply 16 by 6 you get 96
C - Identify the element because each element has it’s own spectra light , which are released when electrons return to ground state
