The number of protons is equal to the atomic number of every element in the periodic table.
Example: The atomic number of Niobium (Nb) is 41. Therefore, the number of protons is also 41.
Because you introduce two reactants, causing them to produce a new chemical product. :)
Answer:- g of carbon dioxide.
Solution:- The balanced equation for the combustion of methane is:
There is 1:1 mol ratio between methane and carbon dioxide. Grams of methane are converted to moles and then using mol ratio we get the moles of carbon dioxide that could further be converted to grams. The calculations are shown as:
=
So, complete combustion of given amount of methane gives .
No. Changing of color is a physical change.
The answer is c. it gives off heat. the heat is produced and provided as an effect of radiation on materials.