Someone help me pls!
...
Answers: 2
Chemistry, 22.06.2019 22:30
3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.
Answers: 1
Chemistry, 22.06.2019 23:00
Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Advanced Placement (AP), 20.04.2020 21:13
History, 20.04.2020 21:13
Computers and Technology, 20.04.2020 21:14
Mathematics, 20.04.2020 21:14
Mathematics, 20.04.2020 21:14
Social Studies, 20.04.2020 21:14
Mathematics, 20.04.2020 21:14
English, 20.04.2020 21:14
History, 20.04.2020 21:14
Mathematics, 20.04.2020 21:14
Mathematics, 20.04.2020 21:14
English, 20.04.2020 21:14