Chemistry, 27.10.2020 17:20 Dallas3506
The sun’s energy arrives as radiation on Earth. When Hector was at the beach, he needed to wear his sunglasses. Which part of the electromagnetic spectrum made Hector put on his sunglasses?
A. visible light
B. infrared radiation
C. ultraviolet radiation
D. microwave radiation
Answers: 1
Chemistry, 22.06.2019 02:50
What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct
Answers: 3
Chemistry, 22.06.2019 03:10
The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?
Answers: 2
Chemistry, 22.06.2019 12:30
Acontrol during an experiment. might change remains constant does not exist does change
Answers: 1
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
The sun’s energy arrives as radiation on Earth. When Hector was at the beach, he needed to wear his...
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