Why activation energy is present in all chemical reactions?

Chromosomes are ?

The greeks believed that fire was a state of matter. how did atomists describe fire?

When you turn off lights in empty rooms, what are you practising?

The vapor pressure of pure water at 110 °C is 1070 torr. A solution of ethylene glycol and water has a vapor pressure of 1.00 atm at 110 °C. Assuming that Raoult's law is obeyed, what is the mole fraction of ethylene glycol in the solution? g

Compared with Earth, the Moon has a surface that is geologically less active. For example A. both the Moon and the Earth have continents that move around. B. the Moon has many active volcanoes, while the Earth has none. C.

31.65 mL volume of 1.07 M Fe (NO3) 3 is mixed with 44.96 mL of 0.79M Fe (NO3) 3 solution. Calculate the molar concentration of the final solution. Save rounding until the end.

At standard pressure, during which physical change does the potential energy decrease?

How are inner and outer planets different?

What process do body cells use to divide

Recall the postulates of kinetic molecular theory read the list and check all the statements that apply to behavior of an ideal gas