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Provide at least three indicators of a chemical change that are present in burning a piece of paper.
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Chemistry, 23.06.2019 01:30
Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature
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Chemistry, 23.06.2019 11:00
Which of the following reactions represents an exothermic reaction? nh3(g) + 12.0 kcal ½n2(g) + 3/2 h2(g) ch4 + 2o2 co2 + 2h2o + 212,800 cal c + 2s cs2, h = 27,550 cal c(graphite) c(diamond), h = 0.45 kcal 2h2o 2h2 + o2, h = +58 kcal
Answers: 1
Chemistry, 23.06.2019 18:40
A2-inch, f/6 telescope has a 3-inch eyepiece focal. its magnifying power is: 36x 4x 3x 2x
Answers: 2
Provide at least three indicators of a chemical change that are present in burning a piece of paper....
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