Answer:
A
Explanation:
because CO2 is carbon dioxide and CO is carbon monoxide. mono meaning one which in this case is monoxide.
Yo sup??
Force is a vector quantity therefore it has both direction and magnitude.
Hence scientists measure magnitude and direction of a force.
Correct answer is option A
Hope this helps
Answer:
a. 5.36x10⁻⁴ g/mL
b. 4.29x10⁻⁵ g/mL
Explanation:
As the units for concentration are not specified, I'll respond using g/mL.
a. We <em>divide the sample mass by the final volume</em> in order to <u>calculate the concentration</u>:
- 0.268 g / 500 mL = 5.36x10⁻⁴ g/mL
b. We can use C₁V₁=C₂V₂ for this question:
- 8.00 mL * 5.36x10⁻⁴ g/mL = C₂ * 100.00 mL
C + O2= CO2
![n = \frac{m}{mw}](https://tex.z-dn.net/?f=n%20%20%3D%20%20%5Cfrac%7Bm%7D%7Bmw%7D%20)
![n = \frac{5.4}{12} \\ n = 0.45 \: mol \: of \: carbon](https://tex.z-dn.net/?f=n%20%3D%20%20%5Cfrac%7B5.4%7D%7B12%7D%20%20%5C%5C%20n%20%20%3D%200.45%20%5C%3A%20mol%20%5C%3A%20of%20%5C%3A%20carbon)
![n = \frac{13.6}{12 + 16 \times 2} \\ n = \frac{13.6}{44} \\ n = 0.31 \: mol \: of \: carbon \: dioxide](https://tex.z-dn.net/?f=n%20%3D%20%20%5Cfrac%7B13.6%7D%7B12%20%2B%2016%20%5Ctimes%202%7D%20%5C%5C%20n%20%3D%20%20%5Cfrac%7B13.6%7D%7B44%7D%20%20%5C%5C%20n%20%3D%200.31%20%5C%3A%20mol%20%5C%3A%20of%20%5C%3A%20carbon%20%5C%3A%20dioxide)
CO2 is limit
5.4-3.72= 1.68 g of C is excess
5.4 g = 100%
3.72 g = x
x=68.9 %
Answer: The correct answer is option (A).
Explanation:
Polar molecules are molecules in which formation of partial charges takes place due to which dipole moment gets created in a molecule. Molecules with polar bonds that s bond with partly ionic character. And water is of the example of polar molecule.
Electronegative oxygen atom in water molecule attracts the electron bond pair towards itself which generates partial negative charge on oxygen atom and partial positive charge on both hydrogen atoms.
Where as water has higher value surface tension due to strong intermolecular association of the water molecule due to presence of hydrogen bonding.And it is more denser is liquid state than in its solid state.
Hence,the correct answer is option (A).