When 3 moles of nitrogen monoxide are formed, how many moles of oxygen reacted? 4 NH3(g) + 5O2 (g) 4 NO (g) + 6 H2O (1)
->

3.75

Explanation:

it's gonna be a decimal number,cus from the formula 5moles produce 4moles of NO

so if 3 moles we're to be produced,it will be 3x5 divide by 4

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:

they are made of gases.

they have a spherical shape.

they make energy through fusion.