Assume that 3 g of compound A reacts with 6 g of compound B. A solid is produced in the reaction, and some gas is also released. The solid has a mass of 2 g. What is the mass of the gas that was released in the reaction? How do you know?

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

a electronegativity decreases beacuse the size of nucleus is bigger.

is there any options? maybe im just not seeing them but i need the options to

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