Answer:subtropical highs. ... Near the poles the pressure is high and it is known as the polar high. These pressure belts are not permanent in nature
Explanation: The horse latitudes are subtropical regions known for calm winds and little precipitation. ... Unable to sail and resupply due to lack of wind, crews often ran out of drinking water. To conserve scarce water, sailors on these ships would sometimes throw the horses they were transporting overboard.
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Answer:
20.1 g
Explanation:
The solubility indicates how much of the solute the solvent can dissolve. A solution is saturated when the solvent dissolved the maximum that it can do, so, if more solute is added, it will precipitate. The solubility varies with the temperature. Generally, it increases when the temperature increases.
So, if the solubility is 40.3 g/L, and the volume is 500 mL = 0.5 L, the mass of the solute is:
40.3 g/L = m/V
40.3 g/L = m/0.5L
m = 40.3 g/L * 0.5L
m = 20.1 g
Answer:
the answer is option D
Explanation:
exothermic reaction takes place when the energy required to break the bonds in the reactants is less than the energy released when new bonds are formed in the products.
Answer:
52.80 % is the percent yield of the reaction.
Explanation:
Mass of nitrogen gas = 38.0 g
Moles of nitrogen = 
According to reaction, 1 moles of nitrogen gas gives 2 moles of ammonia, then 2.235 moles of nitrogen will give:
ammonia
Mass of 4.470 moles of ammonia
= 4.470 mol × 17 g/mol = 75.99 g
Theoretical yield of ammonia = 217.8 g
Experimental yield of ammonia = 40.12 g
The percentage yield of reaction:
52.80 % is the percent yield of the reaction.
