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Misha Larkins [42]
2 years ago
15

Snow and ice absorbs much of the Sun's radiant energyTrue or False?​

Chemistry
1 answer:
Leona [35]2 years ago
3 0

Answer:

Snow and ice have high albedo – much of the sunlight hitting surfaces covered with snow and ice bounces back. ... Thus, the proportion of Earth's surface that is covered by ice and snow affects how much of the Sun's solar radiation is absorbed, warming the planet, or reflected.

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How many doubtful digit(s) is/are allowed in any measured quantity?
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zero

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The ph of water is _____ because it contains an equal amount of h and oh- ions.
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A student mixes a solution containing 10.0 g bacl2 (m = 208.2) with a solution containing 10.0 g na2so4 (m = 142.1) and obtains
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The balanced equation for the above reaction is as follows;
Na₂SO₄ + BaCl₂ --> BaSO₄ + 2NaCl
Na₂SO₄ reacts with BaCl₂ in the molar ratio 1:1
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Number of BaCl₂ moles - 10.0 g / 208.2 g/mol = 0.0480 mol
this means that 0.0480 mol of each reactant is used up, BaCl₂ is the limiting reactant and Na₂SO₄ has been provided in excess. 
stoichiometry of BaCl₂ to BaSO₄ is 1:1
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theoretical yield is 11.2 g but the actual yield is 12.0 g
the actual product maybe more than the theoretical yield of the product as the measured mass of the actual yield might contain impurities. 
percent yield - 12.0 g/ 11.2 g x 100% = 107% 
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