Chemistry, 10.12.2021 14:00 sindy35111
Simon and Nirav are carrying out an investigation to find which of the metals X and Y produces the higher temperature in a reaction with hydrochloric acid. Simon measures out 10cm cube of hydrochloric acid in a test tube. He measures the temperature and then places a small piece of metal X into the acid. He sees bubbles of gas given off. When the reaction finishes, he measures the temperature again Nirav measures out 10 cube of hydrochloric acid in a test tube. He measures the temperature and then places a piece of metal Y into the acid. He also sees bubbles of gas given off. When the reaction finishes, he measures the temperature again. Question 1=Which variable did Simon and Nirav need to change in their experiment?
Answers: 1
Chemistry, 22.06.2019 07:00
6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space
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Chemistry, 22.06.2019 10:30
Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
Answers: 1
Chemistry, 22.06.2019 12:20
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
Answers: 3
Simon and Nirav are carrying out an investigation to find which of the metals X and Y produces the h...
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