At a normal temperature of 25°C, the compound that exists in either a liquid state or a gaseous state is H2O, also known as water.

The reason for this is due to the differences in the boiling points of these compounds. The boiling point of water is 100°C, which is much higher than the normal temperature of 25°C. Therefore, at 25°C, water can exist in a liquid state.

On the other hand, the boiling points of H2S, H2Se, and H2Te are -60°C, -41°C, and -2°C respectively. These are all lower than the normal temperature of 25°C, which means these compounds would exist in a gaseous state at this temperature.

Therefore, out of the compounds listed, only H2O (water) can exist in either a liquid or gaseous state at a normal temperature of 25°C.

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At a normal temperature of 25°C, the compound that exists in either a liquid state or a gaseous state is H2O, also known as water.

The reason for this is due to the differences in the boiling points of these compounds. The boiling point of water is 100°C, which is much higher than the normal temperature of 25°C. Therefore, at 25°C, water can exist in a liquid state.

On the other hand, the boiling points of H2S, H2Se, and H2Te are -60°C, -41°C, and -2°C respectively. These are all lower than the normal temperature of 25°C, which means these compounds would exist in a gaseous state at this temperature.

Therefore, out of the compounds listed, only H2O (water) can exist in either a liquid or gaseous state at a normal temperature of 25°C.

Knowee AI · Accepted Answer

At a normal temperature of 25°C, the compound that exists in either a liquid state or a gaseous state is H2O, also known as water.

The reason for this is due to the differences in the boiling points of these compounds. The boiling point of water is 100°C, which is much higher than the normal temperature of 25°C. Therefore, at 25°C, water can exist in a liquid state.

On the other hand, the boiling points of H2S, H2Se, and H2Te are -60°C, -41°C, and -2°C respectively. These are all lower than the normal temperature of 25°C, which means these compounds would exist in a gaseous state at this temperature.

Therefore, out of the compounds listed, only H2O (water) can exist in either a liquid or gaseous state at a normal temperature of 25°C.

Hydrogen combines with elements such as oxygen, sulfur, selenium, and telluride to form compounds, viz., H2O, H2S, H2Se, H2Te. Predict the compound that exists in either liquid state or gaseous state (at a normal temperature of 25 oC). Give a reason for the answers.

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