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katen-ka-za [31]
4 years ago
7

Which is true for a substance that releases energy?

Chemistry
1 answer:
Ksivusya [100]4 years ago
5 0

Answer:

e is the answer for the question

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The conjugate acid of a particular halide has a pka = 3. a student wants to use this halide in a substitution reaction thinking
Taya2010 [7]

Since the leaving ability of the halide ions increasees as the basicity of the halide decreases.

If the basicity of the halide decreases as the its conjugate acid is strong.

Since the pKa value of conjuage acid of haldie is 3, it is a weak acid. So, it halide is not a good leaving group.

Therefore the answer is No, because a good leaving group is the conjugate base of a strong acid. The halide not acidic enough to be a good leaving group.

5 0
3 years ago
If an object is not moving, it has no
Tanzania [10]

Answer:

that answer is B

Explanation:

the answer is b luv

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During human development, certain cells of the blastocyst can develop into
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Embryonic stem cells are pluripotent, meaning they can give rise to every cell type in the fully formed body, but not the placenta and umbilical cord. ... Human embryonic stem cells have been derived primarily from blastocysts created by in vitro fertilization (IVF) for assisted reproduction that were no longer needed

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4 years ago
The half-life of a radioactive isotope is the amount of time it takes for a quantity of radioactive material to decay to one-hal
finlep [7]

Answer: The statement is true

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The half-life of a radioactive isotope is the time taken for half of the total number of atoms in a given sample of the isotope to decay.

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Thus, the statement is true

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3 years ago
H2O (s) ⇒ H2O What would be the best argument against writing this in the form of a chemical equation?
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Answer: Since this is merely a Physical Change, it is improper to write it as a chemical equation.

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