The model below shows an atom of an element. what is the atomic number of this atom? 6 8 9 16

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Draw metallic bonding if two copper

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml