All of the following are abiotic factors in an ecosystem except?

A) minerals

B) soil

C) Plants

D) temperature

How many moles of HCl are found in 500mL of HCl solution with pH of 3

Why would be hard to mine gold from the ocean?

Which of the following best describes why MnSO4 - > MnO+SO3 is not a synthesis reaction? A. Oxygen is not a reactant in this reaction B. The reaction has more than one product C. The equation is not balanced. D.

1) Rank the elements, aluminum, sodium and phosphorus, in order of decreasing conductivity. 2) Rank the elements aluminum, gallium, and boron in order of decreasing conductivity

Why is an alpha particle written as a helium (He) nucleus?

Give reason: a. Fractionating columns with beads are used for fractional distillation b. Crystallisation is a better technique than evaporation

How can a gardener remedy soil that is overly acidic?

True or false everything has the same amount of energy?

4NH3 (g) + 502 (g) - >6H20g) + 4NOg) What is the enthalpy change for this reaction?

What diseases have increased public awareness of infection control over the past few years?