Answer:
a)Atomic number
Explanation:
Element symbol signifies the element. For eg, Na is sodium. Mass number is the sum of protons and neutrons of an atom of an element. Atomic mass is the molar mass of the given element. Finally, atomic number is unique to each element because it signifies the number of protons of that element. EACH ELEMENT has their UNIQUE number of protons. For eg, atomic number of hydrogen is 1 because it has 1 proton, NO OTHER ELEMENT HAS ATOMIC NUMBER 1 because NO OTHER ELEMENT HAS 1 proton.
Well if it loses one electron, then you would have more protons, so I would assume you would have a positive charge :)
Answer :
and
are reactants.
and
are products.
Explanation :
Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.
In the balanced chemical reaction, the reactants and products are separated by right arrow.
The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.
When ethanol react with oxygen gas then it gives carbon dioxide and water as a product.
The balanced chemical reaction will be:
![C_2H_5OH+3O_2\rightarrow 2CO_2+3H_2O](https://tex.z-dn.net/?f=C_2H_5OH%2B3O_2%5Crightarrow%202CO_2%2B3H_2O)
In the given balanced reaction,
and
are reactants.
and
are products.
1. Go to periodic table and find<span> the atomic </span>mass<span> (top little number) of each element.
2. Multiply each atomic </span>mass<span> by the number of atoms in the </span>formula<span>.
3. Add up the results together. </span>
I think c is used in electric power plants.