Which of the following is true?
a. tardigrades can survive both extreme heat and extreme cold.
b. tardigrades can survive extreme heat, but not extreme cold.
c. tardigrades can survive extreme cold, but not extreme heat.
d. tardigrades cannot survive extreme heat or extreme cold.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry