Contesta: a) ¿Cuántos átomos de oxígeno hay en 200 L de oxígeno en c. n.?. b) Una persona bebe al día 2 L de agua. ¿cuántos átomos de hidrógeno incorpora a su cuerpo mediante esta vía?.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What state of matter is ice a. liquid b. element c. solid d. gas

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.