You have likely found B. a meteorite. Hope this helps!
Answer:
The plum pudding model would have to be true as well because it shows that electrons are scattered within an atom.
Explanation:
I took the test and got it right :)
The correct answer is A. PH value
If a substance is very acidity it has a high PH, if it is less acidic (alkalinity) is has a lower PH. For instance, water has a PH of 7 because it is in between of being acidic and alkaline.
Answer:
%by mass=(4×10g/mol)/((4×10g/mol)+1000×12)
=0.33%by mass
Empirical fomula
C250B
Answer:
Explanation:
both are used to observe things that are invisible to the naked eye