PLEASE HELP ME I REALLY need help in science,
Answers
Answer:
2)salt and water 1)glucose and oxygen
(1) Blue colored solution is Copper Sulphate (CuSO4) which has water of crystallization:
CuSO4.5H2O
Since, it displaces copper from Copper Sulphate and forms ions Sulphate:
FeSO4 (which is pale green in colour)
IT IS A DISPLACEMENT REACTION.
Fe + CuSO4 -----> FeSO4 + Cu
(2) This incident, the flag will flutter in direction of sea when it is midnight because at night time the sea becomes more hot than land and the air above sea traps heat and rises up due to which pressure difference is created and the cool air abive land reaches the sea in order to maintain balance, so the flag will be midnight.
(3) Take two metal blocks of same size & shape and heat one of them to a considerable temperature, then allow both the blocks to touch each other, after a while you will see the other block gets heated due to contact.
REACTION
1. C6H12O6 + O²
2. Salt + H²O
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