Chemistry Midterm Review

Properties of Matter

100

Grinding coffee beans is a chemical or a physical change? Why or why not?

Physical change- you are changing the shape and size of the coffee beans but they are not a new substance.

200

List 3 evidences of a chemical reaction

odor change, color change, texture change, bubbling, fizzing

300

You pour hydrogen peroxide on a wound. It fizzes as it comes in contact with the wound. Is it a chemical or a physical change? State why or why not.

Chemical change-fizzes

400

What separation technique would you use to separate out salt and water?

distillation

500

What kind of mixture is stainless steel?

homogeneous

The Atom

100

What is the mass of a neutron relative to a proton?

They have about the same mass

200

What is the shape of the 5s orbital?

sphere

300

Donutium-55 (column 5) has how many of the following:Protons, Neutrons, Electrons

Protons:23

Neutrons:32

Electrons:23

400

Write the noble gas electron configuration for Butterium (Column 9).

[Ce]5s²4d⁷

500

Write the full electron configuration for Beanium (column 15)

1s²2s²2p⁶3s²3p³

The Periodic Table

100

How many valence electrons does Tomaton (column 14) have?

4

200

What is the most electronegative element on your Periodic table of foods?

Potatine (Po)

300

What type of element is Yamium (Column 14)?

Metalloid

400

How many electrons does NuMu₄^-1 have?

38

500

Give the symbol, period, group, and block for [Ca]4s²3d¹⁰

Va,Period-4, Group-12, Block-d

Bonding

100

Name the following compound:BPo

Bananium Potatide

200

Name the following compound: Sr₃Cu₆

Trisproutine Hexacumbide

300

Name the following CsPeMu₄

Cheesium II Peasate

400

Write the formula for Ditomaton Decasnapide.

To₂Sn₁₀

500

Write the formula for Donutium III Spinate

Do₂(SpMu₄)₃

Miscellaneous

100

What type of bonding uses prefixes in the naming of compounds?

Covalent

200

How is the periodic table arranged?

By increasing atomic number and type of element

300

When bonding, what is an element trying to reach?

stability or 8 valence electrons

400

How many atoms of each element does Gi₂(BaMu₄)₃?

Gi:2, Ba:3, Mu:12

500

List 3 things that are different between a covalent and ionic bond.

Covalent-shares electrons, uses prefixes in naming, between a nm and nm  ionic-gives and takes electrons, no prefixes, m and nm