What is the concentration of hydrogen ion with the poh of 11.5

Which element in the second period has the largest atomic radius? a potassium (K) b neon (Ne) c carbon (C) d lithium (Li)

The three end stages of stars are Red Giant Phase, Second Red Giant Phase and White Dwarf Phase correct?

Agarose gels can be used to study what size of DNA fragments?

Mechanical advantage can be calculated by which of the following expression? A) input force/output force B) output force/input force C) input work/output work D) output work/input work

Where are stars that are in their giant or super giant stages located on the Hertzsprung-Russell diagram? A) upper right B) lower left C) upper left D) middle

Whats the relationship between the temperature and the density of a substance

If you can smell a cleaning solution from across the room, you are experiencing the result of which liquid property? viscosity surface tension cleavage planes volatility

What is the effect of 1 mol dm-3 hydrochloric acid on a bulb? Explain why this effect happens.

Penny bought a club moss plant for her water garden. She needs to know how tall the plant will grow so she knows how much space it will need.

Which of the following is not a producer? Mushroom Tulip Grass Pine Tree