Question

The two most abundant elements in the oceans are sodium and chlorine. Together they make a salt, halite. Sodium is dissolved in groundwater and river water that flows into the ocean. What is the most likely source of chlorine?.

Answer 1

volcanic activity

Step-by-step explanation:

Chlorine is not as common in the Earth's crust as sodium or other elements, but it is found in small amounts in a variety of minerals, such as halite (NaCl), sylvite (KCl), and carnallite (KMgCl3·6H2O). However, the amount of chlorine in these minerals is not enough to account for the large amounts found in the oceans.

Volcanic activity is one of the main natural sources of chlorine in the Earth's atmosphere and oceans. When volcanoes erupt, they release gases that contain chlorine, such as hydrogen chloride (HCl) and chlorine gas (Cl2). These gases can dissolve in rainwater and form hydrochloric acid (HCl), which can then be transported to the oceans through rivers and groundwater. Over time, the accumulation of dissolved chlorine in the oceans has led to the formation of halite and other salt deposits.

In addition to volcanic activity, other natural sources of chlorine in the oceans include weathering of rocks and minerals, and the release of chlorine-containing gases by sea spray and marine organisms. However, these sources are relatively minor compared to volcanic activity.


ALLEN

Answer 2

Answer: Volcanic activity

Explanation: The most likely source of chlorine in the oceans is from volcanic activity. Chlorine is found in the Earth's crust, and when volcanic eruptions occur, they release chlorine gas into the atmosphere. Some of this chlorine can eventually find its way into the oceans, where it can dissolve and become part of the saltwater. Another source of chlorine in the oceans could be from the weathering of rocks and minerals that contain chlorine compounds, which then dissolve in the seawater.