Answer:
the chemical formula shows what element make up a chemical.
Explanation:
Example,
water or H₂O
is composed of two hydrogen atoms, H₂ and one oxygen, O.
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Answer:
Tthe value of
Explanation:
Initial moles of hydrogen peroxide = 1.75 mole
Volume of the container = 25 L
Concentration of a substance is calculated by:
So, concentration of hydrogen peroxide =
The given chemical equation follows:
Initially 0.07 M 0 0
At equilibrium
(0.07-2x) M 2x x
We are given:
Equilibrium moles of hydrogen peroxide = 1.20 mole
Equilibrium concentration of hydrogen peroxide =
Evaluating the value of 'x', we get:
(0.07-2x) M = 0.048 M
x = 0.011 M
So, the equilibrium concentrations of water vapors and oxygen gas are:
The expression of for the above reaction follows:
Putting values in above expression, we get:
Hence, the value of
You can use the HWE (Hardy Weinberg Equilibrium) equations :
p + q = 1
p^2 + 2pq + q^2 = 1
If the allele combinations do not equal one after a while, evolution has occurred.
Answer:
Explanation:
Hello.
In this case, for the equation:
For isolating a, we must first pass (d-e) to divide at the other side as it is initially multiplying:
Next, as b/c is adding, it passes to subtract at the other side in order to finally isolate a:
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2Na(g) + Cl2(g) 2NaCl(s) is the redox reaction. Na atoms lose electrons and Cl atoms gain electrons, thereby getting oxidized and reduced respectively and fulfilling the requirement of a redox reaction.