50 inch plasma tv screen went black. while watching tv all of a sudden my 3 year old samsung plasma tv (5054) went black. the sound still worked but the picture went black. i turned off and waited a few mins then turned it back on and it worked but then did it again.its a very hot day.hile watching tv all of a sudden my 3 year old samsung plasma tv (5054) went black. the sound still worked but the picture went black. i turned off and waited a few mins then turned it back on and it worked but then did it again. its a very hot day.
Reactants and Products in Chemical Reactions. In a chemical reaction, substances (elements and/or compounds) called reactants are changed into other substances (compounds and/or elements) called products. You canât change one element into another in a chemical reaction â that happens in nuclear reactions.
A reaction has two components with the reactant as an ingredient,  and the product is the end result. A combustion reaction as the  reactants of O2 (oxygen) and CH4 (metha â¦ ne). Their product through  the reaction CH4 + 2O2 is 2H2 (water) and C02 (carbon dioxide). The substances that are initially present and consumed in a chemical reaction are called reactants and the substance which is formed at the end of the reaction is called â¦ products.. 2 people found this useful.