The atomic number is 9 Ions have the same atomic number since atomic number signifies number of protons not electrons
Answer:
From the image the answer is 24.
Answer:
120 g of NaCl in 300 g H20 at 90 C
Explanation:
At x = 90 go vertical to the line for NaCl...then go left to the y-axis to find the solubility in 100 g H20 = 40
we want 300 g H20 so multiply this by 3 to get 120 gm of NaCl in 300 g
Answer:
A
Explanation:
matter has mass and undergoes a phase change
