What kind of energy is stored in bonds of molecules

1 answer:

3 0

The answer to your question would more than likely be chemical energy, natural gas, and chemical energy. but I don't know what grade your in I'm in eighth if your below I know the answer. I'm pretty sure I had a question exactly like this last year but that was last year so if it's wrong sorry. I looked it up on Google to make sure

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How do I solve the following word problem: The half-life of Phosphorus - 32 is 14.3 days. It is used to study a plant's use of f

BaLLatris [955]

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

We have the following equation representing the half-life decay:

$A=A_o\times2^{(-\frac{t}{t_{half}})_{}_{}}$

A is the resulting amount after t time

Ao is the initial amount = 50 mg

t= Elapsed time

t half is the half-life of the substance = 14.3 days

We replace the know values into the equation to have an exponential decay function for a 50mg sample

$A=\text{ 50 }\times2^{\frac{-t}{14.3}}$

That would be the answer for a)

To know the P-32 remaining after 84 days we have to replace this value in the equation:

$\begin{gathered} A=\text{ 50 }\times2^{\frac{-84}{14.3}} \\ A=0.85\text{ mg} \end{gathered}$

So, after 84 days the P-32 remaining will be 0.85 mg

4 0

1 year ago

the criterion for whether a reaction proceeds spontaneously is delta g not delta g not, because delta g takes into account the c

Lina20 [59]

Yes this statement is true because the concentration is two help determine whether the reaction is moving forward or backwards direction

Here it is at standard condition and delta g not is always the same because it denote that the reactant/product are at standard temperature or product as the reaction goes toward equilibrium delta g change because reaction is proceeding forward and delta g not is standard change in free energy between reactant and product. delta g is used to find gibbs free energy in nonstandard conditions while delta g naught is used to determine gibbs free chemical reaction energy under normal conditions. that's why this statement is true.

Know more about delta g and delta g not

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5 0

1 year ago

Boyle's Law expresses the pressure-volume

Colt1911 [192]

Answer:

$\large \boxed{\text{175. atm}}$

Explanation:

Data:

p₁ = 1.00 atm; V₁ = 350. L

p₂ = ?; V₂ = 2.00 L

Calculation:

$\begin{array}{rcl}p_{1}V_{1} & = & p_{2}V_{2}\\\text{1.00 atm} \times \text{350. L} & = & p_{2} \times\text{2.00 L}\\\text{350. atm} & = & 2.00p_{2}\\p_{2} & = & \dfrac{\text{350. atm}}{2.00}\\\\& = &\textbf{175. atm}\\\end{array}\\\text{It would take a pressure of $\large \boxed{\textbf{175. atm}}$ to compress the gas.}$