A gardener waters the plants in a garden using a garden hose during a drought. The gardener observes that most of the water give
2 answers:
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Answer:
2.87 liter.
Explanation:
Given:
Initially volume of balloon = 4.3 liter
Initially temperature of balloon = 350 K
Question asked:
What volume will the gas in the balloon occupy at 250 K ?
Solution:
By using:
Assuming pressure as constant,
V∝ T
Now, let K is the constant.
V = KT
Let initial volume of balloon , = 4.3 liter
1000 liter = 1 meter cube
1 liter =
4.3 liter =
And initial temperature of balloon, = 350 K
Let the final volume of balloon is
And as given, final temperature of balloon, is 250 K
Now,
Dividing equation 1 and 2,
K cancelled by K.
By cross multiplication:
Now, convert it into liter with the help of calculation done above,
Therefore, volume of the gas in the balloon at 250 K will be 2.87 liter.
Answer:
(a) The Lewis structure is shown in the image below.
(b)
(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.
(d) Calcium atom loses electrons.
Explanation:
Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or
There are 2 valence electrons of Calcium.
Fluorine is the element of group 17 and second period. The electronic configuration of the element fluorine is - 2, 7 or
There is 1 valence electron of fluorine.
The Lewis structure is drawn in such a way that the octet of each atom is complete.
Thus, calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond. This is done in order that the octet of the atoms are complete and they become stable.
Thus, the formula of calcium chloride is .
<u>(a) The Lewis structure is shown in the image below.</u>
<u>(b) </u>
<u>(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.</u>
<u>(d) Calcium atom loses electrons.</u>
