The answer to this problem is Beryllium is an alkaline earth metal.
Empirical formula is the simplest formula showing the simplest ratio of atoms in a compound. Calculated as shown;
we start by calculating the number of moles of each atom;
moles of nickel = 9.11 g ÷ 58.7 g = 0.155 moles
moles of fluorine = 5.89 g ÷ 19 g = 0.31 moles
Then we get the ratio of the moles of nickel to that of flourine
That is 0.155 : 0.31 (dividing by the smallest)
0.155/0.155 : 0.31/0.155
we get 1:2 ( the simplest ratio)
Therefore the empirical formula is nif2
C and D have three significant figures.
Answer:
Cobalt and nickel are trace elements with properties similar to iron.
Answer:
The volume of the gas at given temperature is 
Explanation:
= initial pressure of gas = 1 atm
= initial temperature of gas = 
= initial volume of gas = 
(
, 1 mL = 0.001 L)
..[1]
= final pressure of gas = 2.1 atm
= final temperature of gas = 
= final volume of gas = ?
..[2]
By dividing [1] and [2] we get combined gas equation :,
Now put all the given values in the above equation, we get:
The volume of the gas at given temperature is
