What is the charge on the calcium ion in Ca3(PO4)2?
1 answer:
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Answer: The volume of 0.684 mol of carbon dioxide at s.t.p. is 15.3 L
Explanation:
According to ideal gas equation:
P = pressure of gas = 1 atm (at STP)
V = Volume of gas = ?
n = number of moles = 0.684
R = gas constant =
T =temperature = (at STP)
Thus the volume of 0.684 mol of carbon dioxide at s.t.p. is 15.3 L
Answer: for
at 25°C is
Explanation: We are given of
at 25°C which is
To calculate the of
, we use the formula:
Putting values in above equation, we get:
Answer:
<u>d. a row of elements</u>
Explanation:
Elements that are in the same group, have same number of electrons and make up a column in a periodic table.