When liquid state is being converted to solid state, atoms come closer to each other and their speed of movement also decreases. Instead of moving about in the substance, they are only able to vibrate about their positions in solid. Hence, this change leads to loss of energy. Similarly, atoms loose energy when state changes from gas to liquid.
Warm front Forms when a moist, warm airmass slides up and over a cold air mass. As the warm airmass rises, it condenses into a broad area of clouds. A warmfront brings gentle rain or light snow, followedby warmer, milder weather.
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Answer:
White colors and white surfaces because white surfaces are poor absorbers and good reflectors of heat radiation.
Explanation:
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15 - 30 - 15 indicates the percentages of Nitrogen - Phosphorus - Potassium respectively. Thus, the fertilizer has 30% Phosphorus (by mass)
Mass of phosphorous = 5 * 0.3
= 1.5 grams
Atomic mass of Phosphorous:
31
moles = mass / Ar
moles = 1.5 / 31
moles = 0.048 mol