25.9 moles of helium are present in a 35.2 liter tank at a pressure of 1635 kPa. at what temperature (in kelvin) is the gas being held? (R=8.31 kPa•L/mol•K)

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

How hot is the suns corona? (integrated science)

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull