Perform the analysis and result 1- how many particles are there in 24.5 g of sulfuric acid

2- what molar concentration is in if you dissolve 10 g of sodium hydroxide in 1000 ml

3- how many grams of sodium chloride are dissolved in a liter of 2M solution (mol / l)

4- how many ml of sodium hypochlorite are in 4L of 13% chlorine​

12 is it do you think so

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.