Answers Na2CO3 + 2HCI → 2NaCI + H2O + CO2. Using the above equation, what volume… Na2CO3 + 2HCI → 2NaCI + H2O + CO2. Using the above equation, what volume of carbondioxide, measured… Read More
Answers When air is passed through alkaline pyrogallol and then over quicklime, the only gases left… When air is passed through alkaline pyrogallol and then over quicklime, the only gases left are? A. nitrogen… Read More
Answers 9.8g of solid potassium chlorate (KCIO3) were added to 40 cm3 of water and heated… 9.8g of solid potassium chlorate (KCIO3) were added to 40 cm3 of water and heated to dissolve all… Read More
Answers When a little brine was added to a metal nitrate a white precipitate was formed… When a little brine was added to a metal nitrate a white precipitate was formed which first turned… Read More
Answers If atom X with six electrons in its outermost shell combines with atom Y with… If atom X with six electrons in its outermost shell combines with atom Y with one electron in… Read More
Answers The nitrogen gas obtained by burning an excess of phosphorus in air has a density… The nitrogen gas obtained by burning an excess of phosphorus in air has a density higher than the… Read More
Answers If the rate of diffusion of oxygen gas is taken as 1, what will be… If the rate of diffusion of oxygen gas is taken as 1, what will be rated of diffusion… Read More
Answers If the temperature of a gas is increased? If the temperature of a gas is increased? A. the kinetic energy of the emolecules will decrease B.… Read More
Answers Which of the following represents ethyl ethanonate? Which of the following represents ethyl ethanonate? A. CH3CH2CO2CH3 B. (CH3CO2)2O C. CH3CH2CO2CH2CH3 D. CH3CO2CH2CH3 E. CH3CH2COCH2CH3 Correct… Read More
Answers Which of the following equations represents an oxidizing action of sulphur dioxide? Which of the following equations represents an oxidizing action of sulphur dioxide? A. SO2 + 2HNO2 → H2SO4… Read More