Answer:
The answer is
<h2>3.0 g/cm³</h2>
Explanation:
To find the density of a substance when given the mass and volume we use the formula
<h3>

</h3>
From the question
mass = 15 g
volume of rock = 5 cm³
The density of the substance is

We have the final answer as
<h3>3.0 g/cm³</h3>
Hope this helps you
Answer:
increasing the temperature decreases the value of the equilibrium constant. Where the forward reaction is endothermic, increasing the temperature increases the value of the equilibrium constant if u increase the temperature, the position of equilibrium will move in such a way as to reduce the temperature again
Explanation:
Aluminum, Carbon, Cobalt, Copper, Zinc, Tantalum