Why are some substances reactive and others not?

238.2g of sodium fluoride are decomposed to form sodium and fluorine. How many moles of sodium are produced?

Calculate the energy when 125 g of lead react with oxygen gas to form solid PbO.

Explain how an experiment involving a mixture of KCl and KClO3 heated together, illustrates the law of conservation of mass.

When Rb combines with N to form an ionic compound, it combines in what ratio? (Report your answer like the example below) Example: 2:1

Please help me complete question 10

If 10 magnesium (Mg) atoms and 10 chlorine (Cl) atoms bump into eaxh othee, could they form a substance? How many molecules made? Would any atims be left over? Which ones? How many?

The energy released when 1.08 mol of lead (II) bromide is formed from its elements is?

6. ptic Complete the table below as shown by the example. Combine the ions into a corect formula, and name the compound. acetate ion dichromate ion bydroxide ion NH4C2H3O2 ammoniur ion ammonium acetate cadmium ion lead(IV) ion Identifying Anions in Solution 100

What atoms tend to be reactive?