<span>The choices are as follows:
h2o + 2o2 = h2o2
fe2o3 + 3h2 = 2fe + 3h2o
al + 3br2 = albr3
caco3 = </span><span>cao + co2
The correct answers would be the second and the last option. The equations that are correctly balanced are:
</span> fe2o3 + 3h2 = 2fe + 3h2o
caco3 = cao + co2
To balance, it should be that the number of atoms of each element in the reactant and the product side is equal.
The answer you are looking for is compression.
Answer:
Diffusion of Innovation (DOI) Theory, developed by E.M. Rogers in 1962, is one of the oldest social science theories. It originated in communication to explain how, over time, an idea or product gains momentum and diffuses (or spreads) through a specific population or social system
Explanation:
steps of divusion if you need it are
Knowledge. The first step in the diffusion of innovation is knowledge. ...
Persuasion. Persuasion is the point at which the prospective adopter is open to the idea of purchase. ...
Decision. Eventually the would-be adopter must make a decision. ...
Implementation. ...
Confirmation.
Happy to help;)!
The most dense one out of all of the answers would be the glass marble with a higher density than that of the golf ball and the rubber ball
