Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is H2CO3 - CO32- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- H2CO3 - CO32- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane helium ozone oxygen methane helium ozone oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is carbon dioxide sodium chlorine chlorine alcohol carbon dioxide sodium chlorine chlorine alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only ANSWER DOWNLOAD EXAMIANS APP
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