18. If 100 gram of saturated solution of sodium nitrate in water at 30 °C, contains 20 gram of solute, find the solubility of sodium nitrate at that temperature.

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc