solubility is the same for all substances, regardless of what they are made of.
true or false

False.

Explanation:

Hello,

We first must consider that such property, solubility, is a chemical property regarding to the capacity of a given substance, the solute, to dissolve into a specific solvent. It is measured by means of the maximum amount of the solute that is completely dissolved into the solvent at equilibrium, forming what is widely known as a saturated solution.

It is important to know that since all the substances are different they could interact differently when acting as solute or solvent via strong (high solubilities) or weak (low solobilities) intermolecular forces, in such a way, solubility highly depends on both the solute's and solvent's constituents. Therefore the answer is false.

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the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol