Pls Ans ASAP If you need to calculate the energy associated with individual steps what information do you need?

- bond energies
- to know Hess's law
- data from calorimetry

What is the temperature of one mole of helium gas at stp?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *