Chemistry, 16.07.2020 17:01 nolangriffin
Just as one dozen eggs always has 12 eggs in it, one mole of a
substance always has the same number of particles in it, 6.02 x 1023.
If you measure 27.0 g of aluminum foil, which is 1 mole of aluminum,
how many Al atoms does it contain?
Answers: 3
Chemistry, 22.06.2019 11:30, claudr03
If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.
Answers: 3
Chemistry, 22.06.2019 14:00, ashlynneboogs0056
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
Chemistry, 23.06.2019 00:30, zaniathomasel
What is bromine+calcium iodide--> calcium bromide +iodine balanced
Answers: 1
Just as one dozen eggs always has 12 eggs in it, one mole of a
substance always has the same number...
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