Chemistry, 27.09.2019 06:30 hannaharsena
The sun sends out enormous amounts of energy . solar energy is produced through nuclear reactions in the sun’s core . once this energy reaches the solar surface, it takes only 8 minutes , traveling at a speed of 300,000 km/s, to reach earth. what evidence can you provide that energy from the sun actually reaches earth’s surface? write or illustrate your ideas in the space below. (it’s due tomorrow )
Answers: 1
Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
Chemistry, 23.06.2019 00:30
Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils
Answers: 1
The sun sends out enormous amounts of energy . solar energy is produced through nuclear reactions in...
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