Chemistry, 19.08.2019 02:30 Funkyatayo
If a sample of matter cannot be separated by physical means, what can be said with certainty about that sample?
a it is a pure substance.
b it is an element.
c it is a compound.
d it is a mixture.
Answers: 1
Chemistry, 22.06.2019 03:00
Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?
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Chemistry, 22.06.2019 12:30
If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.
Answers: 3
Chemistry, 22.06.2019 13:00
If two objects at different te,peraure are in contact with each other what happens to their temperature
Answers: 1
Chemistry, 22.06.2019 20:10
The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 Γ 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + clβ(g) Γ¦ agcl(s)
Answers: 3
If a sample of matter cannot be separated by physical means, what can be said with certainty about t...
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