Give and example of a group and n such that the set of elements whos nth power is e do not form a subgroup

Electromagnetic waves of various frequencies reach earth from distant parts of the universe. Which of the following can be inferred from this?

Which is the balance equation for S8+O2=SO2

Which element has three unpaired electrons in its p orbital?

If you have 2.2 x 10^24 molecules of o2 at stp how many liters of o2 do you have

A 10kg mass is lifted to a height of 2m. What is it's potential energy at this position

Which of the following determines the strength of the force and gravity between two objects? choose all that apply A) the speeds of the objects B) the masses of the objects C) the distance between the objects D) the volume of the objects

The opposite of vaporization

6.8. Liquid methyl ethyl ketone (MEK) is introduced into a vessel containing air. The system temperature is increased to 55°C, and the vessel contents reach equilibrium with some MEK remaining in the liquid state.

What is the pH of a solution that has a H + concentration equal to 1.7 x 10-5 M? 5.20 0.22 10.20 4.77

4 Compared to the energy and charge of the electrons in the first shell of a Be atom, the electrons in the second shell of this atom have (1) less energy and the same charge (2) less energy and a different charge (3) more energy and the same charge