What is the formula for the polyatomic ion and name the following compoundSn(NO2)2
2 answers:
Ok so i was writing a big àss explanation but i realized im not that good at explaining as i thought i was so plz just watch these vids by tyler dewitt. my awesome teacher recommended these videos and tyler dewitt's also a really good teacher and if you watch his vids you'll really master this topic:
Writing Ionic Formula: https://youtu.be/URc75hoKGLY
Naming Ionic Compounds: https://youtu.be/mKo72RnN37E
Writing Formulas with Polyatomic Ions: https://youtu.be/p9iQ5Qn42DM
Writing Ionic Formulas with Transition Metals: https://youtu.be/H4nfE8gRX7Q
Naming Ionic Compounds with Transition Metals Introduction: https://youtu.be/H4nfE8gRX7Q
*btw the pic i attached will be very useful to you except when youre dealing with transition metals and also these links will also help you. the professor dave explains videos about naming ionic compounds just didnt help me but tyler dewitt really did so if you watch his videos you'll be fine
Writing Ionic Formula: https://youtu.be/URc75hoKGLY
Naming Ionic Compounds: https://youtu.be/mKo72RnN37E
Writing Formulas with Polyatomic Ions: https://youtu.be/p9iQ5Qn42DM
Writing Ionic Formulas with Transition Metals: https://youtu.be/H4nfE8gRX7Q
Naming Ionic Compounds with Transition Metals Introduction: https://youtu.be/H4nfE8gRX7Q
*btw the pic i attached will be very useful to you except when youre dealing with transition metals and also these links will also help you. the professor dave explains videos about naming ionic compounds just didnt help me but tyler dewitt really did so if you watch his videos you'll be fine
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Answer:
1. hydrogen - H
2. helium - He
3. sodium - Na
4. magnesium - Mg
5. potassium - K
Explanation:
Hydrogen is the element of group 1 and first period. The atomic number of hydrogen is 1 and the symbol of the element is H.
The electronic configuration of the element hydrogen is:-
Helium is the element of group 18 and first period. The atomic number of helium is 2 and the symbol of the element is He.
The electronic configuration of the element helium is:-
Sodium is the element of group 1 and third period. The atomic number of sodium is 11 and the symbol of the element is Na.
The electronic configuration of the element sodium is:-
Magnesium is the element of group 2 and third period. The atomic number of magnesium is 12 and the symbol of the element is Mg.
The electronic configuration of the element magnesium is:-
Potassium is the element of group 1 and forth period. The atomic number of potassium is 19 and the symbol of the element is K.
The electronic configuration of the element potassium is:-
Answer:
2.86mol/L
Explanation:
Given parameters:
Number of moles of MgCl₂ = 7.15moles
Volume of solution = 2.50L
Unknown:
Molarity of the MgCl₂ solution = ?
Solution:
The molarity of a solution is the number of moles of solute found in a given volume.
Molarity =
Insert the parameters and solve;
Molarity = = 2.86mol/L