Which statement about water forms is true?

Which statement about water forms is true?

• A. Water occurs in three forms; solid ice, liquid water, and water vapor.
• B. The molecular formula for water is HO2.
• C. Groundwater is located above the earth's surface and tapped by wells.
• D. Future water supplies will become more plentiful according to the TCEQ.

Answer: (A)

Water can exist in three basic forms: solid, liquid, and gas. This shows how matter changes with temperature and pressure. Ice is the solid form, liquid water is the familiar state, and water vapor is the gaseous form. At standard atmospheric pressure, ice forms below 0°C, melts into liquid water as it warms, and liquid water boils into steam around 100°C or can evaporate at lower temperatures. The important point is that water’s ability to switch between these forms is a fundamental property of its molecules and the conditions around them. The statement that the molecular formula for water is HO2 is not correct—water is H2O, with two hydrogens for every oxygen atom. Groundwater is not located above the earth’s surface; it sits beneath the surface and is accessed by wells. The claim about future water supplies becoming more plentiful according to the TCEQ isn’t a factual description of water forms and depends on many factors; it isn’t a reliable general truth about how water behaves.

Water can exist in three basic forms: solid, liquid, and gas. This shows how matter changes with temperature and pressure. Ice is the solid form, liquid water is the familiar state, and water vapor is the gaseous form. At standard atmospheric pressure, ice forms below 0°C, melts into liquid water as it warms, and liquid water boils into steam around 100°C or can evaporate at lower temperatures. The important point is that water’s ability to switch between these forms is a fundamental property of its molecules and the conditions around them.

The statement that the molecular formula for water is HO2 is not correct—water is H2O, with two hydrogens for every oxygen atom. Groundwater is not located above the earth’s surface; it sits beneath the surface and is accessed by wells. The claim about future water supplies becoming more plentiful according to the TCEQ isn’t a factual description of water forms and depends on many factors; it isn’t a reliable general truth about how water behaves.