Chemistry, 23.10.2021 01:30 mpete1234567890
What happens to mass and energy in a closed system?
A. Only energy can enter or exit a closed system.
B. Neither energy nor mass can enter or exit a closed system.
C. Only mass can enter or exit a closed system.
D. Both energy and mass can enter or exit a closed system.
Answers: 1
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The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.
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Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
Answers: 3
What happens to mass and energy in a closed system?
A. Only energy can enter or exit a closed syst...
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