If the symbol x represents a central atom, y represents outer atoms, and z represents lone pairs on the central atom, the structure y-: x: -y could be abbreviated as xy2z2.
classify these structures according to their shape.
xy2z, xy2z2,xy2z3,xy3z, xy3z2,xy4z, xy4z2,xy5z the categories are linear, bent(~120), bent(~109), trigonal pyramidal, t-shaped, see-saw, square planar, square pyramidal

1) Bent(120)

2) Bent (109)

3) Linear

4)Trigonal Pyramidal

5)t-shaped

6)see-saw

7)Square planar

8)Square pyramidal

Explanation:

1) XY₂Z:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 1

Shape = Bent (~120)

2) XY₂Z₂:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 2

Shape = Bent (~109)

3) XY₂Z₃:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs =3

Shape = Linear

4) XY₃Z:

Central atom = X

# Bonds around X = 3 X-Y bonds

# Lone pairs = 1

Shape = Trigonal Pyramidal

5) XY₃Z₂:

Central atom = X

# Bonds around X = 3 X-Y bonds

# Lone pairs = 2

Shape = t-shaped

6) XY₄Z:

Central atom = X

# Bonds around X = 2 X-Y bonds

# Lone pairs = 1

Shape = see-saw

7) XY₄Z₂:

Central atom = X

# Bonds around X = 4 X-Y bonds

# Lone pairs = 2

Shape = Square planar

8) XY₅Z:

Central atom = X

# Bonds around X = 5 X-Y bonds

# Lone pairs = 1

Shape = Square pyramidal

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.