AP Chemistry Thou Shall Not Forget Unit 4

What is the the shape of this molecule according to VSPER theory?

• Linear
• Tetrahedral
• Trigonal Planar
• Trigonal pyramidal

Draw the Lewis Dot structure for PCl₅ and determine the predicted molecular geometry

• octahedral

• trigonal pyramidal

• seesaw

• trigonal bipyramidal

Choose the correct shape for this molecule:

• Trigonal planar
• Trigonal pyramidal
• Tetrahedral
• Linear

Filtering separates mixtures based on differences in what property?

• Chemical

• Solubility

• Particle size

• Density

What is the equation for calculating the density of a substance?

• D=m/v

• m=D/v

• D=v*m

• D=v/m

When an electron is in a lower energy level, it is ________________ away from the nucleus

• Closer

• Farther

Isotopes of an element have the same number of __________, but different number of __________.

• protons, neutrons

• neutrons, protons

• protons, electrons

• electrons, protons

Distillation separates mixtures based on differences in what property?

• Solubility

• Boiling Point

• Particle Size

• State of Matter

What type of change conserves mass?

• none

• chemical

• physical

• chemical and physical

Tags

NGSS.HS-PS1-7

When an electron is in a higher energy level, it has ___________ Coulombic attraction to the nucleus

• More

• Less

Tags

NGSS.HS-PS2-4