if the product has lesser energy than the reactants it means enthalpy change value is positive.so it is endothermic reaction where the heat is absorbed.so kcl will formation will have positive enthalpy change .
might be gas change or colour change
Answer:
Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound.Compounds made primarily of carbon and hydrogen atoms are called organic compounds, and all others are called inorganic compounds.
HOPE THIS HELPED!!!!!!!!!!!!XDDDDD
Answer:
4
Explanation:
in (C2H2O2)2 there are 4 hydrogen atoms
