Question

Сравните физические свойства воды и кислорода

Answer 1

Общее: агрегатное состояние (газы), тяжелее воздуха.
Отличие: у кислорода нет цвета,вкуса и запаха, плохо растворяется в воде; хлор желто-зеленого цвета, растворяется в воде.

Answer 2

Physical Properties of Water and Oxygen

Water and oxygen are both essential substances for life and have distinct physical properties. Let's compare their properties:

Water: - Chemical Formula: H2O - Molecular Structure: Water molecules consist of two hydrogen atoms bonded to one oxygen atom. - State at Room Temperature: Water is typically found in a liquid state at room temperature. - Boiling Point: The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure. - Melting Point: The melting point of water is 0 degrees Celsius (32 degrees Fahrenheit) at standard atmospheric pressure. - Density: The density of water is approximately 1 gram per cubic centimeter (g/cm³) at 4 degrees Celsius. - Solubility: Water is a universal solvent and can dissolve many substances due to its polar nature. - Specific Heat Capacity: Water has a high specific heat capacity, meaning it can absorb and retain a significant amount of heat without a large change in temperature. - Surface Tension: Water exhibits surface tension, which allows it to form droplets and create capillary action. - pH: Pure water has a neutral pH of 7.

Oxygen: - Chemical Formula: O2 - Molecular Structure: Oxygen molecules consist of two oxygen atoms bonded together. - State at Room Temperature: Oxygen is a gas at room temperature. - Boiling Point: The boiling point of oxygen is -183 degrees Celsius (-297 degrees Fahrenheit) at standard atmospheric pressure. - Melting Point: The melting point of oxygen is -218 degrees Celsius (-361 degrees Fahrenheit) at standard atmospheric pressure. - Density: The density of oxygen gas is approximately 1.43 grams per liter (g/L) at standard temperature and pressure. - Solubility: Oxygen is sparingly soluble in water, with a maximum solubility of around 0.04 grams per liter (g/L) at room temperature. - Reactivity: Oxygen is highly reactive and supports combustion. - Odor: Oxygen is odorless and colorless.

Please note that the information provided above is based on general knowledge about the physical properties of water and oxygen. For more specific and detailed information, it is recommended to consult reliable scientific sources.