Chemistry, 11.05.2021 03:10 20alondra04
When a 125 g sample of potassium absorbs 5813 J of heat energy, its temperature increases from 25°C to 87°С. Find the specific heat of potassium.
Answers: 1
Chemistry, 21.06.2019 22:30
Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l
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Chemistry, 22.06.2019 05:30
Compare and contrast physical changes with chemical changes.
Answers: 1
Chemistry, 22.06.2019 08:00
Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 1
Chemistry, 23.06.2019 05:30
Find the midpoint of a segment with endpoints of 4-3i and -2+7i
Answers: 2
When a 125 g sample of potassium absorbs 5813 J of heat energy, its temperature increases
from 25°C...
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