What is the molecular formula of a compound that has an empirical formula of CH2O and a molecular mass of 150g/mol

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.