The gas could be which of the following? Select all that apply. Hint: These gases are more dense than air. Nitrogen Neon Argon Carbon Dioxide Helium Hydrogen Propane Carbon Monoxide

What is the reduction potential of a hydrogen electrode that is still at standard pressure, but has ph = 5.65 , relative to the she?

What is the relative mass of an electron? a) 1/1840 the mass of a neutron + proton b) 1/1840 the mass of an alpha particle c) 1/1840 the mass of a c-12 atom d) 1/1840 the mass of a hydrogen atom

How will the ice water mix with the salty water? write your hypothesis below. solution hypothesis describing mixing hypothesis describing temperature (will the top be warmer, cooler, or the same as the bottom? ) solution 1 freshwater solution 2 salty water solution 3 saturated water?