Answer:
Ch4 + 2O2 ----> CO2 + 2H2O
Explanation:
Ch4 has 4H, 1C
O2 has 2 O2
CO2 has 1 C, 2O
H2O has 1 H, 2O
you need to add 2 to O2 to balance it. Add 2 to H2O to balance the H and O
Answer:
C and D
C. There must be 80- 100 inches per year
D. No rain must be distributed throughout the year ;)
Explanation:
Answer: Thus 9.75 moles of iron will be required.
Explanation:
The balanced chemical reaction is:
According to stoichiometry :
2 moles of are produced by= 2 moles of
Thus 9.75 moles of are produced by= of
Thus 9.75 moles of iron will be required.
the Equator receives the most solar energy
Answer:
B. convection because warm air rises and cool air sinks.
Explanation:
The processes that enables birds to fly to higher altitudes without flapping their winds while riding air thermals is called convection.
Convection is one of the forms of heat transfer usually found in gases and liquids.
- In convection density differences due to temperature changes causes the circulation.
- Warm air is less dense and it is hotter.
- It rises up from the surface where it is warmed
- Cold air sinks to replace the warm air. Cold air form when the air loses its energy to the surrounding.
- By virtue of this, birds are able to take advantage of it for their flight.