Escribir las fórmulas de los óxidos correspondientes para los siguientes no metales: +2C +4 C+1 N+2N +3 N+4N +5 N+4S +6S +7 Cl+5l +1 Br

What is the chemical name of the compound ti2o3?

)a children’s liquid cold medicine has a density of 1.23 g/ml. if a child is to take 2.5 tsp in a dose, what is the mass in grams of this dose? (1 tsp = 5 ml)

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