True or False?
Iron can turn into a gas.
Explain.
True, just increase its thermal energy.
True or False
Everything is made out of matter.
Explain
False, energy is not matter.
What group is Potassium in?
1
Why do atoms bond?
To gain a full outer shell, which grants more stability.
Chemical reactions start with:
Reactants
Which reaction in living things produces glucose?
Photosynthesis
What state of matter is shown here? Explain.
Gas. It fills the entire container.
What is the smallest unit of matter?
The Atom
How many valence electrons does Sulfur have?
6
When bonding what is the "magic number"?
8
What does the Law of Conservation of Mass state?
Matter cannot be created or destroyed, instead it's just rearranged.
What type of cell does cellular respiration?
Both animal and plant cells.
The 4 most common states of matter are:
Solid
Liquid
Gas
Plasma
What determines an atom's identity?
Number of protons in the nucleus.
How many electron shells does Argon have?
3
Sharing pairs of electrons is what type of bond?
Covalent Bond
2 examples of a reaction that releases energy.
Fire
Explosion
Cellular Respiration
When does photosynthesis take place?
When the sun is shining on the plant.
What is the opposite of condensation?
Vaporization
How are synthetic materials made?
Natural materials that were chemically changed by humans.
What information about an element can be determined based on its position on the Periodic Table?
Type of Atom - Metal vs Nonmetal
Number of Electron Shells
Number of valence electrons.
What does oxygen want to become stable?
Gain/share 2 electrons.
Balance:
H2O -> O2 + H2
2 H2O -> 1 O2 + 2 H2
Which reaction in living things is endothermic?
Photosynthesis.
Describe what is happening to the molecules are thermal energy is added.
Molecules start moving faster, eventually they can undergo a Phase Change if the molecule are moving fast enough.
The part of matter involved in bonding is ___________
The valence electrons.
This element wants to lose 3 valence electrons in its 4th shell.
Ga
What is the correct chemical formula of
Al and F?
What type of bond is it?
AlF3
Ionic
Balance
C5H12 + O2 → CO2 + H2O
C5H12 + 8 O2 → 5 CO2 + 6 H2O
How are photosynthesis and cellular respiration linked?
The products of one is the reactants of the other.