Own in on for this process is
C3H8 + 502 → 3 CO2 + 4H20 + energy
What are the products in this chemical reaction?
O A. C3H8 + 502
O B. C3H3 + 3C02 + energy
O c. 4H20 + 502
D. 3CO2 + 4H20 + energy

The body is protected against harmful flu viruses by

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.