Chemistry, 24.11.2020 01:10 ComicSans10
Compare the mass of the magnesium strip from test tube 1 with the initial mass of the same strip measured in task 1, part A. Is the mass the same, or is it different? If it’s different, explain what may have caused the difference.
Compare the mass of the zinc strip from test tube 5 with the mass of the same strip measured in task 1, part A. Based on your observations of the metal strip, explain what factors may have added to its mass or caused a decrease in its mass. Which had the greater effect? Explain your reasoning
What evidence can be used to support the fact that oxidation, reduction, or both took place in test tube 5?
Answers: 2
Chemistry, 21.06.2019 21:40
It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided
Answers: 3
Chemistry, 22.06.2019 04:30
Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
Answers: 1
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
Chemistry, 22.06.2019 12:30
Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
Answers: 3
Compare the mass of the magnesium strip from test tube 1 with the initial mass of the same strip mea...
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