Chem Midterm Study

Matter Matters!

100

Which state of matter is most tightly packed together?

What is solid

200

Phase changes are an example of what sort of change?

What is physical change

300

This state of matter has a fixed volume but will take the shape of its container.

What is liquid?

400

The point on a phase change diagram where a substance changes from liquid to gas.

What is boiling point?

500

The flat portion on a heating curve represents

What is bonds breaking?

Bodacious 'Gas'acious

100

Molecules will move which speed when a sample of gas is heated up?

What is move faster?

200

Define a proportional relationship.

What is as one increases, the other increases?

300

Name an inversely proportional relationship.

What is pressure and volume or volume and temperature?

400

Define partial pressure. How do particles interact in the container?

What is the overall pressure exerted by a mixture of gases?

What is they take up the space of their container and move freely?

500

The pressure of a container is 25atm and its volume is 5L. The volume increases to 8L. What is the final pressure of the container?

What is 15.6atm?

Inter vs Intra

100

What type of bonding is present in NaCl?

What is ionic?

What is dipole-dipole?

200

Which elements contribute to H-bonding?

What is hydrogen bonded to nitrogen, oxygen, or fluorine?

300

If a molecule has an EN difference of 0.2. What type of bonding is present?

What is LDF?

What is non-polar covalent?

400

Which force contributes to boiling point strength? Why?

What is intermolecular? 

What is physical change?

500

Name three properties of an ionic compound.

What is high boiling point, rigid and conductive when dissolved?

Charge'r up

100

Opposite charges...

What is attract?

200

Cations are...

Positively charged ions

300

An element in group 16 will form an...

What is anion?

400

A ion will have a +2 charge by...

Losing 2 electrons

500

Define electronegativity. 

What is the amount that an element will gain electrons.

The higher the EN value, the more they want e-.

Ready, Set, CALCULATE

100

A substance is heated up from 298K to 315K. What is the change in temperature?

What is 17K?

200

Copper has a density of 8.96 g/cm³ and has a mass of 3.4g. What is the volume (in cm³)?

What is 2.6 cm³?

300

Phosphorus and oxygen together forms PO₄. If P has an EN = 2.1 and O has an EN = 3.5. Their difference in EN is...

What is 1.4?

400

After finishing an experiment, Annie finds the boiling point of methanol to be 74 °C. She looks up the boiling point and it is actually 65°C. What is her percent error?

What is 13%?

500

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/g°C?

What is 297 J?