Indentify as exothermic or endothermic:2KClO3 + energy gt; 2KCl + 3O22Li + 2H2O gt; 2LiOH + H2 + energywhen substances are mixed the test tube feels coldGreen CuCO3 must be heated in order to break it down in black CuO and CO2 gasIn your cars engine, fuel is burned to produce energywhen substances are mixed the test tube feels warmBalance each equation an d indentify reaction typeLi + O2 gt; Li2OC3H8 + O2 gt; CO2 + H2OH2SO4 + Al gt; Al2(SO4)3 + H2Fe + Cl2 gt; FeCl3H2CO3 + Ba(NO3)2 gt; HNO3 + BaCO3 Aluminum sulfide plus chlorine yields aluminu chloride plus sulfurCopper(II) chloride and silver nitrate produce SiCl4 gt; Si + Cl2Copper(II) nitrate and silver chloride
Just use some double stick tape on the edges of the window and apply the foilUse nail polish remover to remove tape when ready to remove.
The first few are pretty easy, just think about itEndo thermic means energy or heat goes inExothermic means energy or heat comes out2KClO3 + energy 2KCl + 3O2 energy goes in endo 2Li + 2H2O 2LiOH + H2 + energy energy comes out exo when substances are mixed the test tube feels cold energy/heat goes in endo Green CuCO3 must be heated in order to break it down in black CuO and CO2 gas energy/heat goes in endo In your cars engine, fuel is burned to produce energy energy comes out exo when substances are mixed the test tube feels warm energy/heat comes out exo
