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Plaster of Paris is a substance that becomes hard when mixed with water. It is commonly used in construction and Arts and Crafts for making molds and sculptures.
What else can I help you with?
What is volcanic ash used for and why?
it is used for concrete because it dry into a hard substance and when mixed with the right substances, can dry under water
Which crystalline substance makes hard water soft and potable?
One common substance used to make hard water soft and potable is sodium carbonate, also known as soda ash or washing soda. It works by reacting with the calcium and magnesium ions in the water to form insoluble compounds that can be easily removed, resulting in softer water.
What substances keep their physical properties when mixed in water?
sand because when u see in microscope its a little hard shells
What substance is likely found in hard water?
The most common constituents that make water hard are magnesium and calcium ions, since these form only very slightly soluble salts with anions in soap. The other alkaline earth metal cations have the same effect, but occur less commonly.
If a substance is water soluble its solution conducts and it is hard-what kind of bonding is it?
The substance likely forms ionic bonds because ionic compounds are typically water-soluble, conductive in solution, and can form hard structures. These bonds form between a metal and a non-metal, resulting in the transfer of electrons from one atom to another.
What is volcanic ash used for and why?
it is used for concrete because it dry into a hard substance and when mixed with the right substances, can dry under water
Process by which a substance becomes a new and different substance?
This wasn't very hard, the answer is :CHEMISTRY!
How does a soft egg become hard?
you boil it in boiling water
What substance is as hard as stone that is formed by water?
Ice block
What happens when mud drys into a hard substance?
The water was evaporated.
What happen when temporary hard water is boiled?
it becomes soft
When water changes state it looks and feel different but is still water?
Yes, when water changes state, it can appear and feel different but it remains the same substance. For example, when water freezes into ice, it becomes solid and hard, while when it boils into steam, it becomes a gas. Despite these changes, the fundamental chemical composition of water (H2O) remains the same.
Is there a hard liquid?
If you freeze water(liquid) it becomes ice(hard) its a liquid in a solid form
What is the name of the substance that can be used to determine if water is soft or hard?
salt
What is a change in state from liquid to solid called?
It is usually called freezing, but can also be called solidification. It occurs when the temperature goes below the freezing temperature of a substance and that substance solidifies, or becomes hard.
What happens when plaster of Paris mix with water?
Plaster of Paris is formed from gypsum. The gypsum is heated to 150 decrees Celsius and becomes a dry powder. When this powder is mixed with water it re-forms into a paste and eventually hardens into a solid. The powder mixed with water is held together by hydrogen bonds in the water molecules. This is a week bond that is easily broken. When Plaster of Paris and water are mixed together they undergo a chemical change. The particles rearrange to make a completely new substance. When plaster of Paris and water are mixed together the mixture becomes warm releasing energy in the form of heat therefore undergoing a chemical change.
How does a solid become a liquid?
Freezing. The cold slows down the particles in the water and it becomes hard
