Answer: The atom count for each element on the reactant side of a balanced chemical equation is equal to the atom count for each element on the product side of the same equation
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products formed must be equal to the mass of reactants taken.
In order to get the same mass on both sides, the atoms of each element must be balanced on both sides of the chemical equation.
Thus there are 4 atoms of hydrogen on reactant as well as product side.
Also there are 2 atoms of oxygen on reactant as well as product side.
Answer:
Concentration of hydrogen ion, ![[H^+]=5.0118*10^{-6} M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D5.0118%2A10%5E%7B-6%7D%20M)
Explanation:
pH is defined as the negative logarithm of hydrogen ion's concentration.
The lower the value of pH, the higher the acidic the solution is.
The formula for pH can be written as:
![pH=-log[H^+]](https://tex.z-dn.net/?f=pH%3D-log%5BH%5E%2B%5D)
Given,
pH of the saliva of Marco = 5.3
To calculate: Hydrogen ion concentration in the saliva
Thus, applying in the formula as:
![5.3=-log[H^+]](https://tex.z-dn.net/?f=5.3%3D-log%5BH%5E%2B%5D)
So,
![log[H^+]=-5.3](https://tex.z-dn.net/?f=log%5BH%5E%2B%5D%3D-5.3)
![[H^+]=10^{(-5.3)}](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D10%5E%7B%28-5.3%29%7D)
Answer:
on the right side of the equation and are called products
Explanation:
Reactants are on the left side of the equation. When reactants react, they give products.
Products formed are at the right side of the equation.
They are directed as reactant to product using an arrow pointing towards the products.
New substances formed are called products. Several By-Products can also be formed . They are also on the right hand side.
