How many moles are in 3.45 g of Na2O?Round your answer to three significant figures. IN A FINAL EXAM HURRY PLEASE

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

може ли да зареждате повече информация, моля

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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answersilicon (si); oxygen (o);