its able to be cut with a butter knife in room tempature
0.5
The hardness of francium is not known.
The hardness of francium is not known.
Between 1 and 3, depending on it's structure and density. Quite soft.
ammonia has a strong smell?
No, because it's not the chloride part that's responsible for the hardness, it's the calcium. Sodium chloride is actually used in water softeners, so it's not a great choice if you're looking to increase the hardness. You could use calcium hydroxide, though this will also make the pool more alkaline which may not be ideal.
The Mohs hardness of sodium chloride is 2,5. The Mohs hardness is established by comparison with other minerals, having a known hardness.
0.5
The Mohs hardness of sodium chloride is 2,5.
Sodium Chloride IS hard, just brittle, that's why it breaks apart in your hands. The hardness of sodium chloride is 2,5 on the Mohs scale.
Sodium chloride is not the cause of water hardness.
The hardness of sodium chloride on the Mohs scale is 2,5.
The hardness of sodium chloride on the Mohs scale is 2,5.
pseudo hardness interferes to high concentration of sodium ion which interfers with normal behavior of soap.
The hardness of francium is not known.
The hardness of francium is not known.
Yes, because the Mohs hardness is only 2,5.
The Mohs hardness of sodium chloride is 2,5.