The amount of sun’s energy that hits an area helps determine the climate of that area. The Brazilian Rainforest has a tropical climate that averages of up to 300 mm of rain during some months. Which of the following best describes the role of the water cycle in determining the rainforest’s weather? A. Cool temperatures of the moist ground cause evaporation, then increased temperatures of the atmosphere form rain.

B. Hot temperatures causes the condensation and precipitation of water in rivers and streams.

C. Hot temperatures cause water to evaporate from rivers, then cooler temperatures of the upper atmosphere cause water vapor to change to precipitation.

D. Cool air near the rainforest floor causes liquid water to change to water vapor, then condensate to form precipitation.

Cool temperatures of the moist ground cause evaporation, then increased temperatures of the atmosphere form rain.

Explanation:

The amount of sun’s energy that hits an area helps determine the climate of that area. The Brazilian Rainforest has a tropical climate that averages of up to 300 mm of rain during some months. Which of the following best describes the role of the water cycle in determining the rainforest’s weather?

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

a 2,000 calorie based diet.