Drag each tile to the correct location. Which type of change does the statement describe?
Particles rearrange into new
combinations, forming new
substances.
There is no change in the chemical
properties of the substance.
Particles retain their composition
and identity.
The chemical properties of the
substance change.
Physical Change
Chemical Change which belongs to what category

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

How many moles of bromine are needed to produce 3.23 moles of potassium bromide