A sample of 29.344 g of dinitrogen monoxide reacts with an excess of oxygen to form 61.343 g of dinitrogen tetroxide. According to the Law of Conservation of Mass, the amount of oxygen gas that reacted with the nitrogen-containing gas is: 90.687 g O, 2

47.997 g O2
47.997 g O, 2

31.999 g O, 2

2.090 g O, 2

the answer is na (sodium)

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

i'm wiling to try and you : )

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.

hope i !