24 how many moles are in 2.04 × 1024 molecules of h2o?

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.

What is matter? a. anything that has mass and takes up space b. something that has volume and takes up space. c. things that have energy and take up space d. things that take up space but don't have mass

Which particles make up the nucleus of an atom? a. protons and electrons b. neutrons and electrons c. protons only d. protons and neutrons e. neutrons only