Answer:
See explanation
Explanation:
A reaction in which heat and light are produced is a combustion reaction. Combustion is said to have occurred when a substance is burnt in oxygen.
The balanced equation of the reaction is;
4Li(s) + O2(g) ------->2Li2O(s)
This reaction is exothermic because heat was produced. The reaction has a low activation energy as the metal easily burst into flames in oxygen. A catalyst is not needed in this reaction because it has a low activation energy.
According to the law of conservation of mass. Atoms are neither created nor destroyed in a chemical reaction. What this means is that in a chemical reaction, the number of atoms of each element on the left hand side must be the same as the same as the number of atoms of the same element on the right hand side.
H.
represents hydrogen element. under non metal classification.
for others, you'll find them under metal element classification.
Answer:- It's not correct because the values of n and l are same.
Explanations:- The four quantum numbers are n, l, ml and ms where n stands for Principal quantum number and has values like 1, 2, 3 and so on.
l stands for azimuthal quantum number and has values from 0 to (n-1) where n is principal quantum number.
For the given set of quantum numbers, value of n is 3. So, the possible values of l would be 0,1 and 2.
The value of l for the given set of quantum numbers is 3 which is the reason why the given set is not possible.
The answer is a) by increasing the temperature of the reactants.
