Water hyacinth is an aquatic plant that is native to South America and that has been introduced to the United States. Because water hyacinth is not a native species of flower in the country, there is a lack of native animal species that feed on water hyacinth. In fact, it can completely cover a small water body within just a few years. The image below shows a water body that has been covered by water hyacinth. Suppose water hyacinth is introduced into a lake ecosystem in the southeastern United States where it was not previously located. Which of the following best predicts how this will impact the ecosystem over time?
A.
The number of individual plants living in the lake will decrease.
B.
There will be an increase in carbon dioxide available in the lake.
C.
The number of types of plant species in the lake will decrease.
D.
There will be an increase in nutrients available in the lake.

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback