A substance has a volume of 20mL and a density of 2.5 g/mL. what is it's mass?

0.125 g

8 g

22.5 g

50 g

A lake that is protected from receiving the runoff from a cultivated field is likely to remain a healthy ecosystem. t or f

What is a cone of depression

What is the concentration of H + ions in a solution of HCL that was prepared by diluting 35. O mL of concentrated (11.6 M) HCl to a final volume of 500 mL

List two things that might spin a generator to produce electricity

Is blood acid base or neutral

What is true about empathy? Most anyone can learn this skill. Not everyone can learn this skill. It is a desirable attribute. choices A and C

What effect can new observations have on a scientific theory

The total number of valence electrons in the phosphate ion is

The reaction below has an equilibrium constant kp=2.2*106 at 298 k. 2cof2 (g) ⇌co2 (g) + cf4 (g) calculate kp for the reaction below. cof2 (g) ⇌12co2 (g) + 12cf4 (g)

The electrical conductivities of the following 0.100 M solutions were measured in an apparatus that contained a light bulb as the indicator of conductivity. Rank the solutions in order of decreasing intensity (brightest to dimmest) of the light bulb.