Calcula la masa atomica media del cloro (z=17) sabiendo que se conocen dos isotopos de numeros masicos 35 y 37 que aparecen en una proporcion 75% y 25% respectivamente

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.