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.
Money Market Funds vs. Money Market Accounts. Learn the Difference. It's important to know the difference between a money market account (or MMA), which is a deposit account offered by banks, and a money market fund (or MMF), which is an investment product offered by non-bank financial entities like brokers, mutual fund companies, etc.