Hey guys! need help Which of the following statements is true?
1 All renewable natural resources are biological natural resources.
2 All renewable natural resources are nonbiological natural resources.
3 Some biological and some nonbiological natural resources are renewable.
4 All nonbiological natural resources are renewable.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Adilute aqueous potassium nitrate solution is