Answer: Polar air mass is the large mass of air formed over land or water in higher latitudes. They are characterized by cold air.
Tropical air mass is the large mass of air that is formed 25 degrees latitude of the equator. They are characterized by warm air.
Explanation:
Polar air mass is known for cold air near earth's surface. Polar air mass takes place in cold regions like Arctic region.
Unlike tropical air mass, polar air mass brings cold and dry air weather in winter season.
Continental polar mass takes place in cold, stable and low humid areas like subpolar land. Whereas, maritime polar air mass forms over oceans which are cool and located in polar region.
Tropical air mass is characterized by warm to hot air. But, as this air mass move away from their latitude of origin, they get cooled down. This phenomenon mostly result in precipitation and storms in Unites States. This also shows that tropical air mass contains moisture. They are usually prone to sudden changes.
Continental tropical air mass is produced over desert areas of the world during summer, when its hot. While, maritime tropical air mass is produced over tropical and subtropical oceans and seas in the world.
Answer:
True
Explanation:
This is because, The hydroboration oxidation of an alkene which is isobutene in the presence of a catalyst will result to alcohol as the product . Therefore, the OH group will attach or link itself to the carbon which is less obstructed. Thus this reaction is in accordance to Anti-Markownikoff's rule.
So isobutene on hydroboration oxidation will produce ter isobutyl alcohol.
Answer:
141.89 dm^3
Explanation:
The equation of the reaction is;
2H2O2(aq) --------->2H2O(l) + O2(g)
Now , we are told that the mass of hydrogen peroxide decomposed was 315g. Number of moles of hydrogen peroxide in 315g of the substance is given by;
Number of moles= mass/molar mass
Molar mass of hydrogen peroxide= 34.0147 g/mol
Number of moles= 315g/34.0147 g/mol = 9.26 moles of hydrogen hydrogen peroxide.
From the reaction equation;
2 moles of hydrogen peroxide yields 1 mole of oxygen
9.26 moles of hydrogen peroxide yields 9.26 ×1/2 = 4.63 moles of oxygen
From the ideal gas equation;
Volume of the gas V= the unknown
Pressure of the gas P= 0.792 atm
Temperature of the gas= 23°C +273 = 296 K
Number of moles of oxygen = 4.63 moles of oxygen
R= 0.082atmdm^3K-1mol-1
Hence, from PV=nRT
V= nRT/P
V= 4.63 × 0.082 × 296/0.792 = 141.89 dm^3
The answer is c, protiens
