Assignment
Very short answer questions.
What is the composition of water?
Write any two sources of water.
What is the boiling and freezing point of water at sea level?
Write any one test of water.
Who proved that water is a compound?
Define soft and hard water.
What causes hardness of water?
What are the two types of hardness of water?
Answers
Answered by
1
Answer:
- Water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful and essential of compounds. A tasteless and odourless liquid at room temperature, it has the important ability to dissolve many other substances.
- two sources of water are :
- river
- waterfalls
- glacier , etc .
- Boiling point of water at sea level
- It is always the same - 100°C, or 212°FSimilarly, the freezing point of water at sea level is a constant value - 0°C or 32°F.
- Bacteria Tests
- There are a range of potential bacterial contaminants that can plague water. One of the most common and most looked for is E. coli bacteria, which comes from fecal matter exposure and can result in serious health issues when consumed. Bacteria testing is essential in determining how safe water is to drink or expose to your skin.
- Henry Cavendish
- The hardness of water is determined primarily by the amount of calcium and magnesium it contains. ... Instead of having higher levels of calcium and magnesium, soft water tends to have higher concentrations of sodium, or salt.
- Depending on pH and alkalinity, hardness above about 200 mg/l can result in scale deposition, particularly on heating.
- Temporary Hardness.
- Permanent Hardness
HOPE THIS HELPS U PLS MARK AS BRAINALIST
Similar questions