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what is the name of the gas produced from the following reaction? (reaction of sodium with water)
hydrogen gas
2A when decomposes gives 2NaNO2 and O2 evolves, what is the chemical formula of A
NaNO3
state an example for the cellular effect of the nuclear energy
change in haemoglobin composition
all the following represents reduction process except a- decreasing oxygen b- gaining electrons c- giving up electrons d- combination with hydrogen
c
sodium metal can replace all of the following metals from their salt solution except ..................................a- copper b- potassium c- magnesium
b
illustrate by a balanced chemical equation the effect of heat on copper sulphate
CuSO4-------------CuO+SO3
formation of table salt in two steps
2Na---------------------2Na+2e- /Cl2+2e----------------------2Cl-/ 2Na+Cl2--------------2NaCl
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
