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one of the student put an amount of sodium hydroxide solution in a test tube and added an amount od dil. hydrochloric acid to it , what happens when adding amount of silver nitrate sollution to the produced solution
white ppt. of silver chloride formed
formation of table salt in two steps
2Na---------------------2Na+2e- /Cl2+2e----------------------2Cl-/ 2Na+Cl2--------------2NaCl
illustrate by a balanced chemical equation the effect of heat on copper sulphate
CuSO4-------------CuO+SO3
sodium metal can replace all of the following metals from their salt solution except ..................................a- copper b- potassium c- magnesium
b
all the following represents reduction process except a- decreasing oxygen b- gaining electrons c- giving up electrons d- combination with hydrogen
c
state an example for the cellular effect of the nuclear energy
change in haemoglobin composition
2A when decomposes gives 2NaNO2 and O2 evolves, what is the chemical formula of A
NaNO3
what is the name of the gas produced from the following reaction? (reaction of sodium with water)
hydrogen gas
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