HELPPP 1. A solution containing 70 g of NaNO3 at 30 ° C (in 100 ml of H2O) is it saturated or insaturated

2. A solution containing 50 g of NH4CI at 50 ° C (in 100 ml of H2O) is is saturated or insaturated

3. A solution containing 10 g of KClO3 at 50 ° C (in 50 ml of H2O) is it saturated or insaturated

4. A solution containing 90 g of KI at 0 ° C (in 200 ml of H2O) is it saturated or insaturated

the answer for sodium is 0.186

the answer for rubidium is 0.251

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i