There are four sodium atoms in the product.
A reaction equation is said to be balanced when the number of atoms of reactants are equal to the number of atoms of products according to the balanced reaction equation.
Given the reaction between sodium metal and oxygen, the reaction could be written as; 2Na(s) + O2(g) ----> 2Na2O(s). We can see that there are four sodium atoms in the product.
Learn more about balancing reaction equations: brainly.com/question/2510547
The chemical equilibrium will be unaffected
Answer : The 
for the combustion of naphthalene is 
Solution : Given,
Mass of naphthalene = 1.025 g
Initial temperature = 
Final temperature = 
Specific heat capacity of calorimeter = 
Molar mass of naphthalene = 128 g/mole
First, we have to calculate the heat absorbed, 
Formula used :
Now put all the given values in this formula, we get
Now we have to calculate the moles of naphthalene.
Moles of 
= 
Now we have to calculate the for combustion of naphthalene.
where,
q = heat absorbed
n = number of moles
Now put all the values in this formula, we get
Therefore, the for the combustion of naphthalene is
A - Stoichiometry measures the amount of product obtained.
Answer:
1. Animal cells are eukaryotic
2. All live things are made up of cells (I think)
3. Cells are the basic unit of all living things
Explanation:
Number 2 is probably wrong because I can't see the diagram but, all living things ARE actually made up of cells
