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As liquid water freezes, the molecules arrange themselves in a way that takes up more space than llquid water. What would most likely occur if the arrangement of frozen water molecules required less space than that of liquid water molecules?
If ice were denser than liquid water, icebergs would likely sink (even given that sea water is denser than normal water). If this were the case then oceans would likely...
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What is the changing of substances to other substances by the breaking of bonds in reactants and the formation of bonds in products?
Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical bonds.
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A chemical reaction is a process that changes some chemical substances into others. What is involved in the process of forming these new chemical substances?
Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical bonds. Usually this is signalled by a colour change, though some few...
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Why is the mole the center of the mole road map in regards to conversion factors?
Although mathematical relationships (conversions in terms) can take on any form or direction, the point of the "map" is to illustrate the fundamental position and importance of in chemistry. We...
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Compared to most other substances, a great deal of heat is needed to raise the temperature of by a given amount. What trait of water allows this to take place?
We know that the of water under standard conditions is $rho=1.0*g*mL^-1$; and thus for a given volume, there is a LARGE number of $H-O$ bonds to heat..... Why should water...
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Why are changes of state physical changes?
Chemical change is characterized by the making and breaking of strong chemical bonds, and the formation of new substances (I've said this many times before here; forgive me, I can...
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If water is being split to form two new substances, is it a change of state?
$H_2O(l) rarr H_2(g) + 1/2O_2(g)$ In this process, strong chemical bonds are broken, and strong chemical bonds and new substances formed. This is a chemical reaction by definition.
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What type of substances dissolve most readily in water?
Since water molecules are polar (having a positive oxygen end and a negative hydrogen end) the charges formed make it possible for water to exert a strong enough interaction with...
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What is water known as due to its ability to dissolve most substances?
Most substances, covalent or ionic have SOME solubility in aqueous solution.
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Why, compared to most other substances, a great deal of heat is needed to raise the temperature of water by a given amount?
Heat capacity is the amount of heat energy (in joules J) required to raise 1 gram of a substance by 1°C or 1 kelvin. Water has a high capacity (4.18J/g/K)...
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