Where are protons located and what charge do they have?
Positively charged, In the nucleus
What is the difference between a monomer and a polymer?
A monomer is a single unit. A polymer is multiple monomers bonded together.
Describe why water is a polar molecule.
Oxygen is slightly negatively charged, the two hydrogen are slightly positively charged.
What does the pH scale measure?
concentration of H+ ions
Explain the difference between a homogeneous and heterogeneous mixture.
Homogeneous = evenly distributed
Heterogeneous = unevenly distributed
Where are electrons located and what charge do they have?
Negatively charged, Orbit the nucleus in orbitals
Name the monomer and polymer of carbohydrates?
Monosaccharides and Polysaccharides
Define Adhesion and provide an example.
If something has a pH of 2.0 and another item has a pH of 5.0, which is the stronger acid?
2.0; closer to zero that you are, the stronger you are
Define solute verses solvent
Solute = gets broken
Solvent = does the breaking
What two subatomic particles make up the mass number?
Protons and Neutrons
Name the macromolecule that helps transport substances into and out of the cell and does cell signaling.
Proteins
Define Cohesion and provide an example.
Same substances sticking together. Ex. Water droplets coming together on top of a penny.
If I have more OH- ions than H+ ions, what type of pH is it?
Basic, Alkaline
What is the energy needed to start a chemical reaction called?
Activation energy
How many valence electrons does Fluorine have?
7
What is the difference between unsaturated and saturated fatty acids?
Saturated have no double bond. Unsaturated fats do.
When salt is dissolved in water, water is the ...
Solvent
If the concentration of OH- ions = H+ ions, what type of pH is it?
Neutral
A substance that speeds up the rate of a chemical reaction is called a ...
catalyst
Name the four levels of protein structure and tell me what is happening in at least two of them.
Primary, Secondary, Tertiary, Quaternary
Define Capillary Action.
What is the pH of pure water?
7
Describe the difference between a mixture, a solution, and a suspension. Give an example of each.
Mixture = nothing changes
Solution = salt water, evenly distributed
Suspension = dirt in the beaker, no bonds breaking or forming.