What volume of 9 M sodium hydroxide is required to make 500 mL of 0.1 M sodium hydroxide?

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole