Chemistry, 19.02.2021 14:00, Queey

Why an aspirin tablet works faster if it is crushed rather than swallowed whole?

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Chemistry, 21.06.2019 23:30, mastershadow2018

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

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Chemistry, 22.06.2019 09:00, bibhu42kumarp7o4ss

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

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Chemistry, 22.06.2019 14:30, amylumey2005

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

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Chemistry, 22.06.2019 21:30, starl0rd211

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.