1 A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. 2  In a chemical reaction, the atoms and molecules that interact with each other are called reactants. 3  In a chemical reaction, the atoms and molecules produced by the reaction are called products.
FidelityÂ® Defined Maturity Funds. Defined Maturity Funds (DMFs) are an innovative way to invest in municipal bonds. Like Fidelity's other municipal bond funds, DMFs offer professional management, diversification, and seek to provide federally tax-exempt monthly income. They can also be sold at the end of each business day at their net asset value.
Definition of 'Maturity Profile'. Definition: Maturity is a term defined with respect to bonds which have fixed maturities after which they cease to exist on payment of the principal and the stipulated interest. A maturity profile is the asset's profile based on the time remaining to the scheduled or specified maturity.