Chemistry, 10.10.2019 00:20 bdgray7759
Some nighttime partygoers wear glow-inthe-dark necklaces. the necklaces start glowing once they are ""activated"" by snapping the necklace in a way that allows two chemicals to react and emit light in the form of chemiluminescence. is the chemical reaction exergonic or endergonic? explain your answer.
Answers: 2
Chemistry, 22.06.2019 16:00
About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
Answers: 2
Chemistry, 22.06.2019 17:30
Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
Answers: 2
Chemistry, 23.06.2019 05:30
Find the midpoint of a segment with endpoints of 4-3i and -2+7i
Answers: 2
Chemistry, 23.06.2019 11:30
How do you calculate the mass of a product when the amounts of more than one reactant are given?
Answers: 3
Some nighttime partygoers wear glow-inthe-dark necklaces. the necklaces start glowing once they are...
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