No, air is not a pure substance. Because air contains other gases like Nitrogen, Carbon monoxide etc..,
c×v
n (NaOH) = ------
1000
0.1 × 500
n (NaOH) = ----------------
1000
n (NaOH) = 0.05 moles
Mass= Mr(NaOH) × moles
Mass= (23+16+1) × 0.05
Mass=2.15 g (2.15 grams)
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The approximate bond angle around the central carbon atom in acrolein is
120°
The structure of acrolein is shown in the figure below. From the structure, we can deduce that the central carbon atom is in an sp2 hybridization (Atoms with a double bond hybridize in an sp2 fashion).
Atoms with sp2 hybridization have trigonal planar geometry, in this kind of hybridization, bonds are oriented the farthest away possible from each other, to minimize overlapping and the angle that allows that is 120°.
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Answer:
See Explanation
Explanation:
When the balloon is placed above the beaker as described and heating commences, the balloon inflates more. This increased inflation is due to the expansion of the gas in the balloon.
The gas expands because the molecules of gas inside the balloon receive a greater kinetic energy when the temperature was increased hence they move faster and spread out. Recall that temperature is defined as a measure of the average kinetic energy of the molecules in a body.
As the gas in the balloon is heated up, its density decreases. The more the beaker is heated the more the balloon becomes inflated.
When the balloon is removed from the beaker and placed in an ice bath, the balloon shrinks as temperature decreases. This is in conformity with Charles's law.
Answer:
If they all had the same eye color it would probably be hazel, but If they did not then it would either be blue or brown.
Explanation:
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