For the molecule (CO3)^2- how many vibrational and rotational modes should we expect and why is it less than 9?

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?