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Is the white substance left behind when tap water evaporates is it a pure substance or a mixture?
Wiki User
∙ 16y ago
It would be a mixture of various minerals and chemicals if any were present in the water before evaporation
Wiki User
∙ 16y ago
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What happens to molecules when a substance evaporates?
When water molecules at the surface gain sufficient energy they can escape in the atmosphere. Evaporation (not vaporization) occur at any temperature; a higher temperature increase the rate of evaporation. The energy of water molecules increase by a temperature increase and some molecules at the surface can escape in the atmosphere.
When water evaporates energy is released?
Yes, when water evaporates, energy is released.
Why do soft materials work best in petrifying springs?
Because as the spring water evaporates, it leaves behind crystals of calcium carbonate.
How do you explain how mass and energy are conserved when water evaporates?
mass of liqid water before evaporation=mass of liquid water after evaporates + mass of gaseous water.
Is steam a homogeneous or heterogeneous mixture?
Steam is a form of water , so it is made up of hydrogen and oxygen at a perfect ratio.This why it can be said that steam is a compound, therefore it is neither homogeneous nor heterogenious mixture. Steam is a form of water , so it is made up of hydrogen and oxygen at a perfect ratio.This is why it can be said that steam is a compound, therefore it is neither homogeneous nor heterogenious mixture.
What minerals do leaves leave behind when water evaporates?
A dried substance remain.
When water evaporates from a body of water what kind of sediment is left behind?
The sediment is a mixture of sand, soil, salts, detritus.
Why is rain fresh water?
Rain results from water that evaporates and then later cools and condenses back into a liquid. Water is a volatile substance, meaning it evaporates easily. Many of the substances dissolves in water, such as salts, are not volatile and so get left behind when the water evaporates.
What is formed from minerals left behind after water evaporates?
The remaining minerals are called evaporites.
Is oil and water is substance or element?
A mixture of oil and water is a mixture, not an element. If by substance you mean not a pure substance (element or compound), then oil and water would be a substance (that is a mixture). If you mean oil and water separately, then oil is a mixture of hydrocarbons, and water is a compound (pure substance).
Is soda water a pure substance or mixture?
Soda water is a mixture not a pure substance
What is left behind when water evaporates?
Salt
Is salt water a pure substance and why?
no , its a mixture. salt is a pure substance, as is water, but togher they are a mixture.....
Is concrete a compound after the water evaporates and it hardens?
Concrete is a mixture.
Is water a pure substance of a mixture?
Water is a compound, not a mixture.
Is vegetable oil and water a pure substance or mixture?
It would be an mixture
Is top water a substance or mixture?
substance
