List at least three physical properties of water which contain numerical values.
Describe a chemical proterty of water which involves a chemical reaction.
What are you having trouble with? One physical property of water is its density? Can't you think of two others on your own. Name some physical properties of almost anything and that will give you some for water.
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Three physical properties of water that contain numerical values are:
1. Density: The numerical value of water's density is approximately 1 gram per cubic centimeter (g/cm³) at standard temperature and pressure.
To measure the density of water, you can take a known volume of water and weigh it on a balance to find its mass. Then, divide the mass by the volume to calculate the density.
2. Boiling Point: The numerical value of water's boiling point is approximately 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure.
To determine the boiling point of water, you can use a thermometer and heat the water until it reaches the temperature at which it starts boiling and producing vapor.
3. Specific Heat Capacity: The specific heat capacity of water is approximately 4.18 joules per gram per degree Celsius (J/g°C).
To measure the specific heat capacity of water, you can use a calorimeter and measure the amount of heat required to raise the temperature of a known mass of water by a certain number of degrees Celsius.
A chemical property of water that involves a chemical reaction is its ability to undergo electrolysis. When subjected to an electric current, water can be split into its constituent elements, hydrogen (H2) and oxygen (O2), through the chemical reaction known as electrolysis.
Electrolysis of water occurs when an electric current is passed through water containing an electrolyte (such as an acidic or alkaline solution) to facilitate the dissociation of water molecules. The chemical reaction can be represented as:
2H2O(l) → 2H2(g) + O2(g)
The hydrogen and oxygen gases generated during electrolysis can be collected and analyzed.