The flow of energy through living systems can be modeled as food chains food webs or energy pyramids the energy organisms need to live and grow first enter the ecosystem when which of the following occurs ​

the answer to your question is c

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

може ли да зареждате повече информация, моля

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l