Answer:
answer is b
Explanation:
All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor
Multiplying the subscripts within the empirical formula by this number gives you the molecular formula H2O2.
I don't get what you are saying... Can you reword it?
In a solid, molecules are packed together, and it keeps its shape. Liquids take the shape of the container. Gases spread out to fill the container. Solid is one of the three main states of matter, along with liquid and gas.
Hope that helps!
Adding acid and and catching the solution that drains through.