What is the total number of valence electrons in the H2O molecule

Manganese has an oxidation number of +7 in ( O-group 6, F group 7)

Calculate the kinetic energy in joules of an 80.0 g bullet traveling at 300 m/s (Kinetic energy = (1/2) X m x V2) (Hint: substitute mass in kg. 1 kg = 1000g ; 1 J = Kgm2s-2)

How many sigma (σ) bond(s) and how many pi (π) bond(s) does the acetylene (C2H2) molecule contain? Structure of C2H2.docx

Calculate the bond order of N2 molecule (N is in grip 5) N2 MO diagram.pdf

How many moles of Hydrogen(H) are there in 0.5 moles of C12H22O11?   a. 12 moles  b. 11 moles  c. 6 moles  d. 22 moles e.  5.5 moles

Choose the halogen from the list

The correct name for N2O4 is

Choose the correct number of protons, electrons, and neutrons in the Br- (bromide) ion: 35 80 B r –  Protons Electrons Neutrons  A 35 45 35 B 35 35 45 C 35 35 80 D 35 36 45 E 34 35 45

Which of the following is NOT a diatomic species in its molecular state  (Hint: Hydrogen exists as H2 and it is a diatomic gas)