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Is the evaporation of water a potential sign of a chemical change?
No, evaporation causes a change in the state of matter (liquid to solid) which is a physical change
In a chemical reaction two gases combine to form a solid What do you expect for the sign of S?
the sign of S would be negative because a solid is much more ordered than a gas, and at least 2 moles of gas are forming 1 mole of solid which is even more ordered
Why does liquid come out of ears if the person had ear tubes?
It depends what kind of liquid is coming out. It could just be ear wax, but it could also be a sign of an ear infection. Have your doctor check it out.
What does a solid solute do in a liquid?
If the solvent is a liquid, gases, liquids, and solids can be dissolved. Examples are:Gas in liquid: Oxygen in water.Cation of ions). Note also that the visible bubbles in carbonated water are not the dissolved gas, but only an effervescence; the dissolved gas itself is not visible since it is dissolved on a molecular level.Liquid in liquid: Alcoholic beverages are basically solutions of ethanol in water.Petroleum is a solution of various hydrocarbons.Solid in liquid: Sucrose (table sugar) in waterSodium chloride or any other salt in water forms an electrolyte: When dissolving, salt dissociates into ions.Counterexamples are provided by liquid mixtures that are not homogeneous: colloids, suspensions, emulsions are not considered solutions.Body fluids are examples for complex liquid solutions, containing many different solutes. They are electrolytes since they contain solute ions (e.g. potassium and sodium). Furthermore, they contain solute molecules like sugar and urea. Oxygen and carbon dioxide are also essential components of blood chemistry, where significant changes in their concentrations can be a sign of illness or injury.
What is a sign of a reaction oh a chemical change?
a colour change, a gas produced or a precipitate (new substance/solid) formed.
Is the neon in a sign a solid gas or liquid?
Gas
For an equilibrium that lies far to the product side and has a positive entropy change which of the following could be true?
The sign of ΔG° for the forward reaction is less than 0. The reactant could be a solid and the products could be gasses.
Is the evaporation of water a potential sign of a chemical change?
No, evaporation causes a change in the state of matter (liquid to solid) which is a physical change
Melting point of water?
The melting point of a substance is the temperature at which solid state of a substance co exist in equilibrium with its liquid state. It is also called the freezing point (melting is the same process as freezing, just in the opposite direction, and so the temperature is identical).See Web LinksSee the Web Links for "Answers.com: Melting point" below for more information.The melting point is a point where a solid begins to heat and lose mass. It generally changes from a solid state to a liquid state.
Is there presence of liquid water on Mars?
They had found ice on mars but no sign of a liquid
Is the less than sign dotted or solid?
dotted
In a chemical reaction two gases combine to form a solid What do you expect for the sign of S?
the sign of S would be negative because a solid is much more ordered than a gas, and at least 2 moles of gas are forming 1 mole of solid which is even more ordered
Is liquid from the breasts signs of pregnancy?
Yes or it may be a sign of hormonal imbalance
What two countries flag is solid red with a white plus sign in the middle?
denmark
Should the liquid in canned ham be thick and gooey or is it a sign of it being bad?
It is normal..
What state is Iron at 25 degrees c?
Iron is a solid at 20 oC. We would be in a lot of trouble if it weren't, all our cars would become a pool of liquid. +++ To amplify a little, we are fairly comfortable or a bit warm at 20ºC because it equals 68ºC. Incidentally, on my PC at least, the degree sign ( º ) is given by the [ALT]+0186 combination, using the calculator pad not the top row keys. Just a tip others might find handy but it might depend on your own computer's settings!
How is volume useful?
You get volume of something when you use this formula : Length * Width* Height ( star = multipication sign ) . Volume allows you to determine how much matter can be put inside of something. Matter ( solid- ex. ice cube liquid - ex. water or gas - ex. nitrogen )
