Definitions
A force of attraction between atoms or a group of atoms due to the sharing or transferring of electrons.
What is Reactants
Remember that subscripts tell how many of each element are in a molecule (there are no subscripts if there is one atom in the molecule). Therefore, a molecule with 1 carbon atom and 4 chlorine atoms would have the chemical formula?
What occurs when two nonmetal atoms share valence electrons?
What is a covalent bond
The property of water that is not a result of hydrogen bonding is its?
What is its transparency
What 2 substances did we use in this experiment?
What is water and butter.
Substances that undergo a chemical change.
What is Chemical Bond.
A molecule of caffeine has the chemical formula of?
What is C8 H10 N4 O2
When 2 atoms have an unequal pull on the electrons they share what?
What is a polar covelant bond.
A water strider insect is able to walk on water- despite being denser than water because water has what?
What is cohesion.
Why did the butter sink?
An atom or a group of atoms that has a positive or negative charge
AgNO3 has?
What is 1 silver atom, 1 nitrogen atom, and 3 oxygen atoms.
What bonds are the weakest bonds because they are a result of the attraction of slight changes on atoms due to uneven sharing of electrons within molecules?
What is Hydrogen bonds
In reference to the water strider walking on water and not sinking, the results is a phenomenon called what?
What is surface tension.
Why did the ice cube float?
What is water molecules are closer together when water is a liquid compared to when water is a solid, so the ice cube could not push its way through the water molecules and it stayed afloat.
A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared.
What is Cohesion
The arrow helps you to determine the direction of the chemical reaction. You start with Zn and 2HCL and you end up with ZNCL2 and H2. So,
Zn+2HCL ---> ZnCL2 + H2 what 2 things does this represent?
What is Reactants and Products
Hydrogen bonds are not covalent or ionic bonds but instead are a weaker force of attraction that causes the molecules to what?
What is stick together.
What are the 3 phases of water?
What is solid, liquid and gas
Why is this concept so important for God's creation? (think a lake or pond freezing)
What is that the lake or pond will not fully freeze, therefore all of God's creatures in the water will be saved and not killed during freezing weather.
The force of attraction between molecules of the same substance so that they tend to stay together.
What is Adhesion
The most stable electron configuration for atoms is when?
What is their highest energy level has a full set of electrons.
A chemical bond formed between oppositely charged ions is what?
What is ionic bond
Water is able to dissolve many substance because of its what?
What is polarity.
The reason that water seems to dissolve almost everything is?
What is universal solvent.