An individual unit of copper in the previous question is a(n) . A. atom
B. molecule
C. compound
D. mixture
E. element

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure