What is power of a hair dryer if it uses 72000 found a of energy in 60.0 seconds

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Calculate the number of moles of ethane in 100 grams

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5