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Gases, liquids & Solids
Ice is less dense than water at:
Because water is at its maximum density at 4 degrees centigrade, and freezes at 0 degrees centigrade, ice formed at 0 degree centigrade. When ice freezes, it forms a solid crystal structure that takes up more room than liquid water, hence the density of ice is less than that of water.
Bond energy can also be regarded as:
- Bond enthalpy
- Bond diffusing energy
- Bond breaking energy
- All of thes
All of these
Bond energy is the amount of energy required to break bonds in one mole of a substance. All of the options given below have same meaning thus all options can be regarded as bond energy.
For homogeneous catalysis reaction between liquids, the catalyst should be of which form?
- Can be any of the above
In chemistry, homogeneous catalysis is a sequence of reactions that involve a catalyst in the same phase as the reactants. Phase here refers to solid, liquid, vs gas. Most commonly, a homogeneous catalyst is co-dissolved in a solvent with the reactants.