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Elements of hard water are potentially hazardous at about 0.3 to 1.5 PPM.

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10y ago

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Can hard boiled eggs left on stove in warm water for 2 hours still be consumed?

No. Boiled eggs should be stored in the refrigerator. Hard cooked eggs are considered a potentially hazardous food. Potentially hazardous food should not be left at room temperature for more than 2 hours (or 1 hour if the ambient temperature is quite warm). I would not recommend consuming the egg.


What elements make up hard water?

magnesium and calcium.


What are the elements found in water?

Hard water contains carbonates and bicarbonates of calcium and Magnesium.


Why is hard water less desirable than soft water?

Hard water contains more calcium and can casue scaling on heater elements found in dishwashers, kettle and washing machines.


What 2 elements make water hard?

magnesium and calcium.


How is water made hard?

Water becomes hard when it is infused with minerals. Elements like sulfur, copper, magnesium, and other metals cause a metallic taste that most people do not enjoy.


What by product is linked to hard water?

Calcium and iron deposits within the water are harmless and often colorless unless the iron content is large (think rust color). These two elements are creators of 'hard water'.


How long will cooked eggs stay fresh at room temperature?

Since hard-cooked eggs are a potentially hazardous food, the maximum time they should be kept at room temperature is 2 hours.


Does hard water have a detrimental effect on plants, potentially leading to their death?

Yes, hard water can have a detrimental effect on plants due to its high mineral content, which can lead to nutrient deficiencies and hinder the plant's ability to absorb water. In severe cases, this can result in stunted growth and even death of the plant.


Does hard water darken the skin colour?

Hard water itself does not directly darken skin color. However, the minerals in hard water, such as calcium and magnesium, can lead to dryness and irritation, which may affect the skin's appearance. Over time, dry skin can appear dull or darker due to a lack of moisture and proper exfoliation. Additionally, any skin reactions or conditions caused by hard water could potentially lead to hyperpigmentation or discoloration.


What is the main problem with hard water for most people?

The main problem with hard water for most people is its tendency to cause limescale buildup in pipes and appliances. This can reduce water flow, damage plumbing systems, and decrease the efficiency of water-using appliances such as dishwashers and water heaters. Additionally, hard water can make soap less effective, leading to difficulty lathering and potentially leaving a film on skin and hair.


Element y combined with element u can be found in 'hard water'?

The elements y and u in hard water usually refer to calcium (y) and magnesium (u) ions. These minerals are responsible for making water hard, which can lead to issues like scaling in pipes and reduced efficiency of soap.