Chemistry, 26.06.2019 23:00 shaheedbrown06
A160g radioactive sample is left undisturbed for 12.5 hours. at the end of that period, only 5.0g remain. what is the half-life of this sample? show work
Answers: 2
Chemistry, 22.06.2019 04:50
Write the overall equation for the reaction for lithium battery
Answers: 2
Chemistry, 23.06.2019 05:00
C=59(f−32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius.a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.a) i onlyb) ii onlyc) iii onlyd) i and ii only
Answers: 1
Chemistry, 23.06.2019 08:30
Of element x has 22 protons, how many electrons does it have
Answers: 1
Chemistry, 23.06.2019 09:20
1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?
Answers: 2
A160g radioactive sample is left undisturbed for 12.5 hours. at the end of that period, only 5.0g re...
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