45 molecules of chlorine gas (Cl₂) are needed to react with 30 atoms of aluminum (Al)
The balanced equation for the reaction is given below:
2Al + 3Cl₂ —> 2AlCl₃
From the balanced equation above,
2 atoms of Al required 3 molecules of Cl₂.
With the above information, we can determine the number of molecules of Cl₂ needed to react with 30 atoms of Al. This can be obtained as follow:
From the balanced equation above,
2 atoms of Al required 3 molecules of Cl₂.
Therefore,
30 atoms of Al will require = 
= 45 molecules of Cl₂.
Thus, 45 molecules of chlorine gas (Cl₂) are needed to react with 30 atoms of aluminum (Al)
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Answer:
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Explanation:
If nutrients are added to an ecosystem, then the composition of the plant community at different stages of succession will also change because different species take advantage of different soil conditions.
Answer:
Numbers use periods in English to separate the whole number from the decimal. A period used in a number is also called a "decimal point" and it is read "point" unless it refers to money
Explanation:
Answer:
1.Electric generators (mechanical energy to electricity)
2.Windmills (mechanical energy to electricity)
Answer:
I found:
ν=6×10^14Hz
Explanation:
You can consider that wavelength λ and frequency ν are related through the speed of light in vacuum c as:
c = λ ⋅ ν
so:
3 * 10⁸ = 4.9 * 10-⁷ * V
v =3 *10⁸/ 4.9 *10⁻⁷ = 6 * 10¹⁴HZ
