3 years ago

What does X represent for this transmutation?

Chemistry

1 answer:

Cerrena [4.2K]3 years ago

6 0

Answer:

2 4He

Explanation:

Please see attachment for explanation.

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How to balance NH3+NO=N2+H2O

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Explanation:

NH₃+NO=N₂+H₂O;

NH₃+NO=N₂+6H₂O;

NH₃+6NO=N₂+6H₂O;

4NH₃+6NO=N₂+6H₂O;

4NH₃+6NO=5N₂+6H₂O.

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1 year ago

Which phase change results in atoms with the highest kinetic energy? A. Boiling B. Melting C. Freezing D. Condensing

suter [353]

Answer: Boiling because it makes the molecules in water bounce around.

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3 years ago

If a substance has a half-life of 55.6 s, and if 230.0 g of the substance are present initially, how many grams will remain afte

Assoli18 [71]

Answer:

$m=0.127g$

Explanation:

Hello,

In this case, for a first-order reaction, we can firstly compute the rate constant from the given half-life:

$k=\frac{ln(2)}{t_{1/2}} =\frac{ln(2)}{55.6s}=0.0125s^{-1}$

In such a way, the integrated first-order law, allows us to compute the final mass of the substance once 10.0 minutes (600 seconds) have passed:

$m=m_0*exp(-kt)=230.0g*exp(-0.0125s^{-1}*600s)\\\\m=0.127g$

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3 years ago

Describe the two methods of active transport

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Endocytosis
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Exocytosis
Secretion of material out of the plasma membrane

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3 years ago

Read 2 more answers

A chiral amine A having the R configuration undergoes Hofmann elimination to form an alkene B as the major product. B is oxidati

Free_Kalibri [48]

Answer:

The Structure of "B" is alkene.

Explanation:

The compound "A" having R- configuration and undergoes Hofmann elimination to form an alkene.

The compound "B" on oxidatively cleaving with ozone followed by dimethyl sulfide forms $CH_{2}=S$ and $CH_{3}CH_{2}CH_{2}CHO$

The structure of "A" and"B" is as follows.

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3 years ago