A sound wave has a wavelength of 15 meters with a frequency of 2.5 Hz. What would the velocity be for this situation in m/s?

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

True or false graphs must include scales that increase by the same amount

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2