Answer:
The balanced equation is given below:
CH4 + 2O2 —> CO2 + 2H2O
The coefficients are: 1, 2, 1, 2
Explanation:
The equation for the Combustion of methane (CH4) is given below:
CH4 + O2 —> CO2 + H2O
Now we can balance the equation above as follow:
There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by putting 2 in front of H2O as shown below:
CH4 + O2 —> CO2 + 2H2O
Now, there are a total of 4 atoms of O on the right side and 2 atoms on the left. It can be balance by putting 2 in front of O2 as shown below:
CH4 + 2O2 —> CO2 + 2H2O
Now the equation is balanced.
The coefficients are: 1, 2, 1, 2
0.05 liters of 0.40 M calcium chloride solution
Explanation:
We have the following chemical reaction:
Na₂CO₃ + CaCl₂= 2 NaCl + CaCO₃
Chalk is calcium carbonate CaCO₃.
number of moles = mass / molecular weight
number of moles of CaCO₃ = 2 / 100 = 0.02 moles
From the chemical reaction we see that 1 mole of calcium chloride (CaCl₂) produces 1 mole of calcium carbonate (CaCO₃), so to produce 0.02 moles of calcium carbonate (CaCO₃) we need 0.02 moles of calcium chloride (CaCl₂).
molar concentration = number of moles / volume (L)
volume = number of moles / molar concentration
volume of calcium chloride solution = 0.02 / 0.4 = 0.05 liters
Learn more about:
molar concentration
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<span>both DNA and RNA is the answer</span>
C. Mid-ocean ridges are constantly pulling apart and are in the ocean.
Answer: edge length = 3.61 cm
Explanation:
Givens
m = 369 gm
d = 7.86 gm / cm^3
v = ?
Formula
v = m / d
Solution
v = 369 / 7.86
v = 46.95 cm^3
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That's not the answer. You must take the cube root of the volume
side = cube root (46.95)
side = 3.61 cm
