Draw a three-dimensional representation of the oxygen-bearing carbon atom in ethanol,
1 answer:
Answer : The three-dimensional structure of ethanol is shown below.
Explanation :
The ethanol molecule is made up of 2 carbon atoms, 6 hydrogen atoms and 1 oxygen atom.
The 3D representation is shown by solid, dash and wedge bonds.
Dash lines shows that the molecules are behind the plane.
Wedge shows that the molecules are above or front of the plane.
Solid line shows that the molecules are present on the plane.
The three-dimensional structure of ethanol is shown below.
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Answer:
\text{0.30 cm}^{3} \times \left (\dfrac{10^{-2}\text{ m}}{\text{1 cm}}\right )^{3} = 3.0 \times 10^{-7} \text{ m}^{3}
Explanation:
0.030 cm³ × ? = x m³
You want to convert cubic centimetres to cubic metres, so you multiply the cubic centimetres by a conversion factor.
For example, you know that centi means "× 10⁻²", so
1 cm = 10⁻² m
If we divide each side by 1 cm, we get 1 = (10⁻² m/1 cm).
If we divide each side by 10⁻² m, we get (1 cm/10⁻² m) = 1.
So, we can use either (10⁻² m/1 cm) or (1 cm/10⁻² m) as a conversion factor, because each fraction equals one.
We choose the former because it has the desired units on top.
The "cm" is cubed, so we must cube the conversion factor.
The calculation becomes