What is the mass number of an atom with 3 protons and 4 neutrons and 3 electrons

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces