We turn up a speaker so that it is 100 times as intense as before. How many decibels will it be if the original sound wave
is 90 decibels?
a 130 dB
b 100 dB
C 120 dB
d 90 dB
e 110 dB
Check it

The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation

What term describes technology that operates on an atomic level

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?