Where are the answers that apply .. hopes this help :)
Answer:
Explanation:
There are 2 NH4 in the equation therefore just multiply the molarity of the total solution by 2. Aaaaaaaaaaaaaaaaaaaaaaaaaaaand listen to "She Blinded Me With Science" by Thomas Dolby! ;)
Answer:
Proton:20
Electrons:20 (18 if wanted balance electron)
Mass:40
Ca²+
1 mole of any substance contains Avogadro's number.
So, 1 mole of O2= 6.023x10^23 molecules
3 mole of O2= 6.023x10^23x3 molecules
= 1.8069x10^24 molecules
Each molecule of Oxygen has 2 atoms.
therefore,
1.8069x10^24 molecules= 1.8069x10^24 x 2 atoms
= 3.6138x10^24 atoms.