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Chemistry, 21.06.2019 14:30
Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.
Answers: 1
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
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Chemistry, 23.06.2019 03:30
Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5
Answers: 1
Chemistry, 23.06.2019 09:00
How many moles of sulfur dioxide are in 2.26 × 10^33 sulfur dioxide molecules?
Answers: 3
When a plant dies, it often decomposes and becomes part of the soil. This process is one step in whi...
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