The answer is Metal rings
Started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Answer:
8.90
Explanation:
Density = mass ÷ volume
D = 222.50 g ÷ 25.00
= 8.9
The density of the unknown metal is 8.90.
Hope that helps.
Answer: The value of
is 2
Explanation:
Moles of
= 1.0 mole
Volume of solution = 1.00 L
Initial concentration of
= 
Equilibrium concentration of
=
The given balanced equilibrium reaction is,
Initial conc. 1.0 M 0 M
At eqm. conc. (1.0-x) M (2x) M
The expression for equilibrium constant for this reaction will be,
Given : 2x = 1.0
x= 0.5
Now put all the given values in this expression, we get :

Thus the value of
is 2