J.j. Thomson discovered them
Endocrine system im pretty sure
Answer:
A Family Portrait
That element is NOT in the family. When we told you about families, we said that they were groups of elements that react in similar ways. Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal.
Balanced equation
So we see from inspection that H is not balanced. And by balancing H we have to add 2(NO2) and 2H
So the balanced equation is;
2HNO2 + CaCO3 = H2CO3 + Ca(NO2)2
Any questions feel free to ask.
Energy production
Thus most industries in working burn oxygen as fuel. Examples are steel production and production of chemicals
