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ivanzaharov [21]
2 years ago
13

Which scientist is credited with developing the fist scientific atomic theory

Chemistry
1 answer:
Norma-Jean [14]2 years ago
3 0

Answer:

German chemist G.E. Stahl

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The rate constant for the decomposition reaction of H2O2 is 3.66 × 10−3 s−1 at a particular temperature. What is the concentrati
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Answer:  3.72 M

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant = 3.66\times 10^{-3}s^{-1}

t = age of sample = 15.0 minutes

a = let initial amount of the reactant  = 10.0 M

a - x = amount left after decay process = ?

15.0\times 60s=\frac{2.303}{3.66\times 10^{-3}}\log\frac{10.0}{(a-x)}

\log\frac{100}{(a-x)}=1.43

\frac{100}{(a-x)}=26.9

(a-x)=3.72M

The concentration of H_2O_2 in a solution after 15.0 minutes have passed is 3.72 M

7 0
3 years ago
How many moles of iron would be needed to react with 3.82 moles of<br> oxygen
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Answer:

5.09

Explanation:

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3 years ago
Calculate the mass of carbon dioxide produced from complete combustion of 16.6 g of octane, C8H18, in the following reaction. C8
Oksi-84 [34.3K]

Answer:

51.2g of CO2

Explanation:

The first step is to balance the reaction equation as shown in the solution attached. Without balancing the reaction equation, one can never obtain the correct answer! Then obtain the masses of octane reacted and carbon dioxide produced from the stoichiometric equation. After that, we now compare it with what is given as shown in the image attached.

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3 years ago
You are practicing classification by sorting pictures into groups based on the characteristics of the kingdoms. While you are so
posledela

Answer: D

Explanation: fungi kingdom is Hetrotropiv and is unicellular

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Organisms that get energy by eating dead organisms are called
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Answer:

Either Carnivores or Heterotrophic.

Explanation:

Carnivorous organisms are the more obvious answers in this, but if you want a bit of pizazz, throw in Heterotrophic Fungi.

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3 years ago
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