Chemistry 1
Chemistry 2
Chemistry 3
Chemistry 4
Chemistry 6
100

A reaction that combines into a new substance is what kind of chemical reaction?

synthesis/combination reaction

100

the periodic table is organized by increasing _______, aka number of protons

atomic number

100

scientist who developed the Atomic Theory that we still use today

Dalton

100

the general rule that atoms prefer to have a full valence shell of 8 electrons

octet rule

100

As you go down a group, atomic radius ___?____ because there are more ___?____.

a) decreases; occupied energy levels

b) decreases; protons

c) increases; occupied energy levels

d) increases; protons

c. increases, occupied energy levels

200
What kind of bond is formed between atoms that share electrons?

covalent

200

What is the word formula for KI?

Potassium Iodide

200

What type of reaction is this:

A + B ----> AB

a) double replacement

b) decomposition

c) synthesis

d) single replacement

Synthesis.

200

 Electrons located in the outermost energy level of an atom are called

valence electrons

200

boiling water, melting ice cream, and shredding paper are all examples of ____?____ changes.

physical 

300

What is the chemical formula for carbon dioxide

CO2

300

What is the chemical formula for Magnesium Chloride?

MgCl2

300

The elements can be found in the far right group of the periodic table (group 18)

noble gases

300

On the periodic table, elements in _______ typically have similar chemical and physical properties.

a) trends

b) blocks

c) periods

d) groups

groups

300

Combustion reactions always produce all of these EXCEPT

  1. Carbon dioxide

  2. Water

  3. Heat

  4. Oxygen 

4. oxygen

400

The basic building block of chemistry. It is the smallest unit

Atoms

400

When one chemical changes its state of matter, the change is called

What is Physical Change

400

What is the proper name for this formula: AlF3

Aluminum fluoride

400

What is the number of protons in an atom of Beryllium?

4 protons

400

Double replacement reactions occur when the _____ or _____ ions of two ionic compounds exchange places to form two new compounds.

a) Polyatomic, molecular 

b) Type I and Type II

c) Monatomic, diatomic

d) Positive, negative

d) positive and negative

500

Group 17 elements are called:

halogens

500

What is the proper formula for this compound: copper (II) iodide

CuI2

500

Which are definite signs of a chemical reaction taking place?

a. change of state

b. different color

c. precipitate formation

d. gas formation

e. change in volume

c. and d.

500

Name the scientist who created the periodic table of elements.  

Mendeleev

500

What factors influence atomic radius size?

nuclear charge/number of protons and number of shells/distance between nucleus and valence electrons

600

Explain the difference between mass number and average atomic mass: 1 minute 30 seconds

mass number = individual atoms, sum of protons and neutrons

avg atomic mass = sum of all masses of different isotopes by abundance

600

Name the 7 diatomic gases

Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine

600

What are 3 things a Lewis Diagram can show us that a regular molecular formula cannot? Think of a water molecule. 

1. arrangement of atoms

2. types of bonds (single, double, triple)

3. valence electrons/lone pairs

4. molecular geometry/shape

600

Explain ionization energy: 1 minute

Energy required to remove an electron from the outermost shell of an atom. Increases as more electrons are taken. 

600

Name 4 types of chemical Reactions

Decomposition, synthesis,  single replacement, double replacement, combustion

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