Please answer 1. What is the difference between magma and lava?

2. Under what circumstances do large crystals form from a cooling magma?

3. Under what circumstances do small crystals form from a cooling magma?

4. What happens to the mineral particles in salt water when the water evaporates?

5. Explain how halite forms.

6. Explain how mineral veins form.

I can answer 1, lqva is magma outside of the volcano

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm