In the formation of a macromolecule, what type of bond would join two amino acid subunits?

A) ionic bond

B) phosphodiester bond

C) hydrogen bond

D) peptide bond

What happens to a gas as it is cooled below 0*C

A kettle has a store of 400J of thermal energy in the heating filament. 345J is transferred by heating to thermal energy store of water. How much energy is dissipated as sound?

The source of materials which eventually formed our vast coal and oil deposits came from (plant & animal matter, volcanic ash, rocks) buried in (ingenious, metamorphic, sedimentary) rocks all over the earth.

Which is an example of a chemical change? ripping paper chopping wood baking a cake stretching a rubber band

A train travels 97 kilometers in 2 hours, and then 96 kilometers in 2 hours. What is its average speed?

If energy cannot be created, where did the types of energy you observed when the tortilla chip burned come from?

If I have an unknown quantity of gas at a pressure of 750 torr, a volume of 25 liters, and a temperature of 300 K, how many moles of gas do I have?

How would you represent the atoms of aluminum in the gaseous phase

An alkali metal is most likely to form an ionic bond with an element from which group? noble gases halogens alkaline earth metals transition metals

What is CO2 nomenclature