Beth has two unlabeled balloons, one filled with hydrogen gas and the second filled with neon gas. Beth also has several chambers filled with various gases and a poster showing the densities of these gases. Select the gas from the poster Beth should use in an experiement to identify the lment in each balloon.

Iwould google this

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

And a) oxygen i believe

Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.