Answer: It will take 0.50 minutes for it to decompose to 28.2% of its initial value
Explanation:
Integrated rate law for second order kinetics is given by:
a= concentration left after time t = 
k = rate constant =
= initial concentration = 1.77
t= time taken for decomposition
Thus it will take 0.50 minutes for it to decompose to 28.2% of its initial value
answer 4 I checked online it's correct
The answer is D, the kinetic energy of the water molecules begins to increase. When you heat up a pot of water, the water molecules begin to move very fast. Thus, stating that the kinetic energy of water molecules increase since the water molecules go from moving a little bit to moving really fast! I hope this could help!
The symbol of the radioactive nuclide, given the data is ⁴⁰₁₉K
<h3>Data obtained from the question</h3>
- Atomic number = 19
- Mass number = 40
- Symbol of nuclide =?
<h3>How to determine the nuclide</h3>
From the question given above, the atomic number of the nuclide is 19.
Comparing the atomic number (i.e 19) of the nuclide with those in the periodic table, the nuclide is potassium with a symbol of K
<h3>How to determine the symbol of the nuclide</h3>
- Atomic number (Z) = 19
- Mass number (A) = 40
- Name of nuclide = Potassium (K)
- Symbol of nuclide =?
The symbol of a nuclide is given as ᴬ₂X
Where
- A is the mass number
- Z is the atomic number
- X is the symbol of the element
Thus,
ᴬ₂X => ⁴⁰₁₉K
Therefore, the symbol of the nuclide is ⁴⁰₁₉K
Learn more about composition of atoms:
brainly.com/question/886387
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Answer:
Mid ocean ridge.
Explanation:
(it is an underwater mountain range, formed by plate tectonics.)
