PLEASE HELP ME

What happens to the number of infections when the Ro value is <1?

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

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

Which element is the least metallic between cadmium, silver, zinc, or iron?