Which star colors are hot and which are cool? What numbers represent the brightest stars and what numbers represent the dimmest ones?

Why did the hair get electrified after being rubbed by a balloon

Explain how matter is not created or destroyed when there are chemical and physical changes.

Ephedrine, a central nervous system stimulant, is used in nasalsprays as a decongestant. this compound is a weak organic base: {/rm{c}}_{10} {/rm{h}}_{15} {/rm{on (}}aq{/rm{) }} + {/rm{h}}_2 {/rm{o}} (l{/rm{) }} / overrightarrow{/leftarrow}

What is the mass of a 980 N bike

How many grams of glucose are in 11.5 moles?

Calculate the percentage by mass of nitrogen in ptcl2 (nh3) 2.

Below are the structures of three fatty acids, palmitic acid, stearic acid, and oleic acid. what combination of these fatty acids could you use to make a fat that is liquid at room temperature?

According to the quantum-mechanical model of the atom established by shrödinger, where may the electrons of an atom be found?

Renewable resources cannot be replaced in our lifetime

How do you make a guy who is extremely into you, even though he knows you aren't single, to bug off?