Chemistry, 07.10.2020 09:01, atkinsonsinbraz
Using insulate gloves, Ms. Sanders transferred a few pieces of dry ice to a flask and covered it with a balloon. After a few minutes the students observed the balloon starting to inflate. Explain what was happening in the flask and balloon to cause it to inflate. Pick the statement that DOES NOT apply to the changes.
A) The dry ice changed from a solid to a gas at room temperature.
B) The carbon dioxide gas had more kinetic energy than the solid carbon dioxide.
C) Rapidly moving carbon dioxide gas molecules moved into the balloon and inflated it.
D) As the temperer increased, the solid carbon dioxide changed phase: solid - liquid - gas.
Answers: 3
Chemistry, 22.06.2019 21:00, cxttiemsp021
The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?
Answers: 1
Chemistry, 22.06.2019 22:30, vhife4901
Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.
Answers: 1
Using insulate gloves, Ms. Sanders transferred a few pieces of dry ice to a flask and covered it wit...
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