Chemistry, 22.04.2021 23:10 lportis4898
Lexi is trying to cook a steak, but she has a problem! The 907g steak is frozen and at a temperature of 2.0C. She needs to get the steak to 63.0C in order for it to be safe to eat. How much energy does Lexi need to use? (The specific heat capacity of steak is 1.67 J/gC)
Answers: 3
Chemistry, 22.06.2019 11:00
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
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Chemistry, 23.06.2019 00:00
Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?
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Lexi is trying to cook a steak, but she has a problem! The 907g steak is frozen and at a temperature...
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