The enzyme urease catalyze the hydrolysis of urea into ammonia and carbon dioxide. If urease is added to any compound which has no urea, it will not catalyze any reaction because if there is no urea, urease will not bind to any substance.
Given that <span>sample a has a higher melting point than sample
b. Therefore, sample a is a longer chain of a </span><span>fatlike solid substance. It could also be that the bonds present in sample a is much stronger which will require more energy to break. Hope this answers the question.</span>
Answer:

Explanation:
Hello
In this case, by considering the Raoult's law we can write:

Whereas the purpose is to compute the pressures of both methanol and ethanol (pressures above the solution), thus, the first step is to compute the molar fractions:

Therefore, the pressures turns out:

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Answer is "<span>the
oxidizing agent receives electrons from the reducing agent</span><span>".
There are two types of reactants in redox reactions. One is oxidizing agent and
other is reducing agent.
Oxidizing agent is a substance which helps to oxidize other substance by
gaining electrons. This is also called as oxidizer. Due to the gaining
electrons, oxidizing agents tend to be reduced.
Reducing agent or reducer helps to reduce other substance while loosening
electrons. Hence, reducing agents tend to be oxidized.</span>