Which of these is a biotic factor of an ecosystem? A) Crystals of salt
B) Rays of sunlight
C) Grains of Sand
D) Strands of seaweed

How can the periodic table be used to predict the behavior of elements?

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature