See generally Laura W. Morgan, Child Support Guidelines: Interpretation and Application Â§ 4.05 (Supp. 1999). Many states rewrote their emancipation statutes in the 1970s and 1980s to provide that a parent is released from a child support obligation when the child is 19 or graduates from high school. [See Table below.] Emancipation may also come before the age or event stated in the above Table.
The Law of Conservation of Mass (or Matter) in a chemical reaction can be stated thus: In a chemical reaction, matter is neither created nor destroyed. It was discovered by Antoine Laurent Lavoisier (1743-94) [15K GIF] about 1785.
His results led to one of the fundamental laws of chemical behavior: the law of conservation of matter, which states that matter is conserved in a chemical reaction. We now understand why matter is conserved -- atoms are neither created nor destroyed in a chemical reaction.he total mass of the products of a reaction therefore must be the same as the total mass of the reactants. Origins of Stoichiometry (Antoine Lavoisier). In his famous textbook, Trait lmentaire de Chimie, which was published in 1789, Lavoisier reported that water was roughly 85% oxygen and 15% hydrogen by weight.