a learner investigate the relationship between volume and pressure of a enclosed diatomic gas at room temperature ​

In apex! a liquid heated beyond a certain temperature becomes

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.