It's true
There are thousands of combinations that can be put together to form a all sorts of compounds. That's the whole basis of inorganic chemistry. Organic chemistry is a little bit different. It is more restricted.
Answer:
The properties of elements will repeat periodically when the elements are arranged by their atomic number.
Explanation:
Answer:
See explanation below.
Explanation:
In the older procedure, the solution is cooled so quickly that the recrystallization can be less effective. By allowing the solution to cool slowly, the maximum amount of crystal is formed, and also the impurities are trapped, so the process is more controlled than by the older one.
Answer:

Explanation:
We need to convert
to 





So



The speed of the gas molecules is
.