WHICH SIGN CAN SAY THAT A PHYSICAL CHANGE HAS TAKEN PLACE
1.FORMATION OF GAS
2.FORMATION OF P...
Chemistry, 02.02.2021 15:20 Lesquirrel
WHICH SIGN CAN SAY THAT A PHYSICAL CHANGE HAS TAKEN PLACE
1.FORMATION OF GAS
2.FORMATION OF PRECIPITATE
3.EVOLUTION OF HEAT
4.ALL THE ABOVE
Answers: 2
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Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li
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What is the independent variable in this investigation? mass volume sample number substance density
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Chemistry, 22.06.2019 10:00
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
Answers: 2
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
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