4. a) At 90°C, you dissolved 10 g of KCl in 100. g of water. Is this solution saturated or unsaturated?
b) How do you know?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.