Chemistry, 19.05.2020 15:16 Mistytrotter
Footballs used by the NFL are inflated to 12.5 psi. 11 of 12 footballs measured 10.5 psi after the playoff game when the temperature was 5°C. At what temperature were the balls inflated to explain this pressure drop?
Answers: 1
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Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?
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Chemistry, 23.06.2019 05:00
Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.
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Chemistry, 23.06.2019 19:30
Atax that increases in proportion to increase in income is known as
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Exactly 1.00 ml of an aqueous solution of hno3 is diluted to 100.0 ml. it takes 29.78 ml of 0.0142 m ca(oh)2 to convert all of the hno3 to ca(no3)2. the other product of the reaction is water. calculate the molarity of the undiluted hno3 solution. petrucci, ralph h.. general chemistry (p. 144). pearson education. kindle edition.
Answers: 2
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