Molecules
Molecules 2
Counting Atoms
Counting Atoms 2
Exothermic and Endothermic Chemical Reactions
2023 Pop Culture
100
What is a molecule?
Two or more atoms combined together.
100
Are these simple or complex molecules?
Complex
100
Identify what the small numbers are called...
2H2O2
The small number is called the subscript
100
Identify what the large number is called...
2H2O2
Coefficient
100
Double Jeopardy
Is this picture showing an endothermic or exothermic reaction taking place?
Exothermic
100
Which team won the 2023 NBA finals?
Denver Nuggets
200
Why do atoms join together to form molecules?
To have 8 electrons "valence" in their outermost area.
200
Double Jeopardy
Which molecule(s) below are considered compounds?
Ozone
Carbon Dioxide
Hydrogen Peroxide
Carbon Dioxide and Hydrogen Peroxide because they have more than one type of atom.
200
Count the Number of Elements in the chemical formula.
3 CH4C2OOH3
What is 3 elements?
200
Below are four substances and their chemical formulas.
Substances Chemical Formula
Glucose C6H12O6
Methane CH4
Ethanol C2H5OH
Hydrogen Peroxide H2O2
According to the chemical compounds table above, which substance has the highest number of hydrogen atoms?
Glucose.
200
Endothermic or Exothermic? Evidence?
Exothermic-Gives off Heat
200
Who is TIME's Person of the Year?
Taylor Swift
300
Quartz, or silicon dioxide (SiO2), is one of the most abundant minerals on Earth. The diagram shows the atomic arrangement of quartz. Based on the diagram, which statement best describes the atomic arrangement of quartz?
A. many different kinds of atoms that can move freely past each other
B. a repeating pattern of small molecules that can move freely past each other
C. an extended structure that is made of repeating patterns of atoms
D. many different kinds of molecules that combine to form an extended structure
C. an extended structure that is made of repeating patterns of atoms
300
Is cholesterol a simple or complex molecule? Give Evidence.
Complex because it is an extended structure with repeating groups of atoms.
or
Complex because it is made up of many atoms with many bonds.
300
Which has the least number of hydrogen atoms?
2C6H4O3, 4H2O, 2CH3COOH, and 2H3PO4
What is 2H3PO4?
300
Double Jeopardy
Below are four substances and their chemical formulas.
Substances Chemical Formula
Glucose C6H12O6
Methane CH4
Ethanol C2H5OH
Hydrogen Peroxide H2O2
According to the chemical compounds table above, how many total elements are in Ethanol?
3 elements
300
2H2O (L) + heat →2H2(g) + O2(g)
Endothermic (absorbs energy)
Mg(S) + Cl2(g)→MgCl2(S) + heat
Exothermic (releases energy)
300
In which month was the coronation of King Charles III scheduled?
May
400
Double Jeopardy
What type of bonding is happening between these atoms?
Give two pieces of evidence.
Ionic Bonding
An electron is taken or given.
It occurred between a metal and non metal.
Ions are made
400
How are the structures/composition of nitinol and titanium different from each other?
Nitinol
Titanium
Nitinol is made of nickel and titanium atoms.
and
Titanium is made of titanium atoms.
400
Count the atoms of each element in
4 HP(NO3)2
What is 40 atoms?
400
Below are four substances and their chemical formulas.
Substances Chemical Formula
Glucose C6H12O6
Methane CH4
Ethanol C2H5OH
Hydrogen Peroxide H2O2
According to the chemical compounds table above, order the substances from least to greatest number of atoms.
Hydrogen Peroxide
Methane
Ethanol
Glucose
400
Identify 3 facts about an Endothermic Chemical Reaction, and Give an Example.
1.
2.
3.
Example:
What is absorbs energy/heat, is made when bonds between atoms break, and feels cool.
Example: Baking Soda and Vinegar
400
Which legendary rock singer announced retirement from touring in February 2023?
Ozzy Osbourne
500
Identify the two types of bonding we spoke of.
Give two differences and one similarity about each.
Ionic Bonding
This happens between metals and non metals
Electrons are given or taken.
The goal is for atoms to have 8 electrons in outer ring.
Covalent Bonding
This happens between nonmetals and nonmetals.
Electrons are shared.
The goal is for atoms to have 8 electrons in outer ring.
500
Compete the sentence below about nitinol.
Choices: First- The same or different Second- types of atoms or positions of atoms Third- move more easily or move less easily
All forms of nitinol have _____types of atoms, but the different forms of nitinol have different properties because the ______change. The atoms in the martensite molecules can _______than the atoms in the austenite molecules.
The Same
Positions of atoms
Move more easily
500
Double Jeopardy
Organize these chemical formulas from least to greatest number of atoms.
6H2O2, C6H12O7, 2Ca(CO2)3, and 3Ba2(OH)2
What is
3Ba2(OH)2, 2Ca(CO2)3, 6H2O2, and C6H12O7
500
The chemical reaction above has reactants and products. Between the reactants and products, which has more total atoms.
Both the reactants and products have a total of 21 atoms.
500
Identify 3 facts about Exothermic Chemical Reactions, and Give an example.
1.
2.
3.
Example:
What is releases heat, happens when bonds between atoms form, and feels warm. Examples: Fire, Hot Hands, Etc...
500
How much money did the movie 'The Flash' lose?
200 Million