Which chemical equation is balanced.
1 answer:
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Answer:
See below
Step-by-step explanation:
(a) Shape
The formula for water is H-O-H.
The central O atom has four electron pairs around it. They try to get as far from each other as possible, so they point toward the corners of a tetrahedron.
Only two of the pairs have a hydrogen atom attached, so water has a bent shape. The H-O-H bond angle is about 104°.
(b) Chemical magnet
The O atom has a greater attraction than H for the shared electrons in the O-H bonds, so the electrons spend more time near the O.
This gives the O atom a partial negative charge (pink in the diagram) and the H atoms a partial positive charge (blue).
The water molecule acts like a chemical magnet because its negative end attracts the positive ends of other molecules, while its positive ends attract the negative ends of other molecules.
Explanation:
The given data is as follows.
= 250 mL,
= 750 mL
=
= 35 + 273 K = 308 K
= 35 + 273 K = 308 K
= 0.55 atm,
= 1.5 atm
P = ? , V = 10.0 L
Since, temperature is constant.
So, = PV
Now, putting the given values into the above formula as follows.
= PV
=
P = 0.126 atm
As, 1 atm = 760 torr. So, = 95.76 torr.
Thus, we can conclude that the final pressure, in torr, of the mixture is 95.76 torr.
Sun to kelp
kelp to sea urchin
sea urchin to otter
otter to shark
kelp,sea urchin,otter,shark to bacteria
bacteria back to kelp
