Suspension ;) i hope this helps!
2. Sr= 12 P= 48 O= 48
I think I'm not 100% sure though
Answer:
The change in energy for a chemical reaction has to do with the potential energy of the electrons. The change in energy for a nuclear reaction has to do with the potential energy of the nucleus. The change in energy for a nuclear change is many orders of magnitude larger than for a chemical change.
Volume of 3M solution: x
Moles in 3M solution: 3x
C = n/V
1,8 = 3x/0,05dm³
0,09 = 3x
x = 0,03dm³
A student need 0,03dm³ 3M HCl and 0,02dm³ of water.
Answer;
1. positive ion
Explanation;
-An ion is formed when an atom gains or looses electrons. A positively charged ion (cation) is formed when an atom looses electrons and a negatively charged ion (anion) is formed when an atom gains electrons. Therefore, if an atom looses two electrons it forms a positively charged ion with a charge of +2.
