9. The weight of a number
sheets of paper varies directly
as the number of sheet m

12 sheets of paper weigh
how
ou ma
many
paper will wergh Ky?
of shedsa
sheed
90g
8
of

What type of reaction is zn + cucl2 → cu + zncl2?

What state of matter is ice a. liquid b. element c. solid d. gas

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?