Presented with three pairs of related carbonyl-containing molecules, identify the relative frequency of their carbonyl infrared by sorting the pairs into two groups. (There will be three compounds per bin.) slightly higher stretching frequency slightly lower stretching frequency Drag and drop the labels into the boxes to identify which of the pair will have a higher carbonyl stretching frequency relative to the other. hept-3-en-2-one 3-phenylpropanoic acid but-2-enoic acid butanoic acid cinnamic acid heptan-2-one

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

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

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.