Answer:
Transition elements are elements which have partially filled d-orbitals and form at least one or more stable ions.
Answer:

Explanation:
Mole ratio


Moles of CO₂

Use formula to find mass

Relative molecular mass of CO₂ = 12 + 16 × 2 = 44


Answer:
O lowering the temperature of the system
Answer:
Freezing
Explanation:
When a liquid goes to a solid, this process is called freezing.