Answers: 3
Chemistry, 22.06.2019 18:00, jeepjose58
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
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Chemistry, 23.06.2019 03:00, mullerma
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
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Chemistry, 23.06.2019 05:30, khaylaperry
What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?
Answers: 1
Chemistry, 23.06.2019 05:40, shelbylynn1093
Why is it incorrect to balance a chemical equation by changing the subscripts? explain.
Answers: 2
Large tides, called spring tides, are experienced in the earth's oceans when the moon is in position...
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