The invisible spectrum contains all the colors of the rainbow.
A.)True
B.)False

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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 ?

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory