If the He in Problem 3 takes 20 sec to effuse, how long will nh takes?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt