Answer:
Explanation:
When LiOH and carbon dioxide reacts , they form lithium carbonate and water.
The skeletal equation will be:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The balanced equation will be:
WHat's a concept map again?
I forgot...
Can I send a picture instead of typing it out?
Exothermic reactions<span> are chemical </span>reactions<span> that release energy. Example: Burning a candle is an example of an </span>exothermic reaction<span> because energy is being released during the </span>reaction<span> in the form of heat. </span>Endothermic reactions<span> are chemical </span>reactions<span> that absorb energy.</span>
<h2>Hello!</h2>
The answer is: C2H6
<h2>Why?</h2>
First, we need to find the empirical formula of the compound:
Looking for the relative atomic mass for each element:
Finding the number of moles for each element:
Then, we need to determinate the mole ratio by dividing each result into the smallest number:
So, the empirical formula would be CH3
We are given the molar mass of the compound is equal to 30 g/mol
We need to compare the empirical formula molecular mass and the molecular formula molar mass in order to find the number of atoms of the compound:
Empirical formula molar mass:
Molecular formula molar mass = 30.0 g/mol
So, by dividing the molecular formula molar mass by the empirical formula molar mass we have the number of atoms of the compound:
Therefore,
The molecular formula will be: (CH3)2= C2H6
Have a nice day!