How do different elasticities of supply affect tax incidences?

How do different elasticities of supply affect subsidy incidences?

If a good has elastic demand and inelastic supply, who pays a greater portion of the tax if an excise tax is imposed?

If a good has inelastic demand and elastic supply, who pays a greater portion of the tax if an excise tax is imposed?

If a good has elastic demand and inelastic supply, who receives a greater portion of the subsidy if a per-unit subsidy is provided by the government?

If a good has inelastic demand and elastic supply, who receives a greater portion of the subsidy if a per-unit subsidy is provided by the government?

What is the general rule of thumb for elasticities of both supply and demand to determine who pays a greater portion of the tax or receives a greater portion of the subsidy?