B 1.2g/mL just look at a graph and pin point those answers
Answer:
Oxygen.
Explanation:
The copper must be combined with something in the air.
Answer:
are there any options for us to choose from? or is it just fill in the blank
From a solubility curve the solubility of KNO3 at 40°C is about 63 g / 100 g of water.
That means that 100 g of water at 40°C can dissolve 63 g of KNO3.
A saturated solution is one that cannot dissolve more solute, because it already has reached the greatest concentration that it can hold.
Then, the mass of KNO3 that dissolves in 100 g of water is about 63 g.
