The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.
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 good example is table salt
Table salt at room temperature is a lattice structure-- meaning its ions are SUPER close to each other and hence can't flow.
If you look at electrical insulators, it simply means they can't carry charge-- because there's no flow of charge.
If you dissolve table salt or melt it, it becomes Dissociated meaning NaCl becomes Na^+ and Cl^-
So now they are separated, and they are ions (charged particles)-- because they are separated they can flow, and because they are charged, they carry a charge. Hence, a flowing charge when they are melted (at super high temperatures) or dissolved (yes, even at room temperatures)
The answer should be "Dunes"
Answer:
Electrons occupy the regions around the nucleus(energy levels) while protons and neutrons are found in the nucleus
