elements, molecules, and atoms
what is an atom?
basic building block for matter
what is shown on the left? (see my midterm document for image on page 5 question 1)
reactants
what is the ph of water?
7
what is role of oxygen?
helps you breath and regulates blood circulation
what is hydrophilic?
water loving
what is a molecule?
atoms that are bonded together by a sharing electron
what are shown on the right? (see my midterm document for image on page 5 question 2)
products
what the weakest ph of acidic?
6
what is the function of hydrogen?
the bonds of water molecules and weak bonds that can break easily
what is hydrophobic?
water fearing
what is the charge of an atom?
neutral charge
what is a molecule that you have to have for a chemical reaction to happen?
water
what is the weakest ph of base?
8
whats the charge of protons?
positive
is a sponge hydrophilic or hydrophobic?
hydrophilic
what are the subatomic particles?
protons, neutrons, and electrons
what is the process of photosynthesis?
to transform the sunlight into sugar (glucose)
what side of the ph scale is this? (see my midterm document for image on page 5 question 3)
acidic
what is the charge of electrons?
negative
are crayons hydrophilic or hydrophobic
hydrophobic?
what are 6 of some of the most important elements of life?
carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur
what happens in a chemical reaction?
old bonds get broken down and new ones are formed
what side of the ph scale is this? (see my midterm document for image on page 5 question 4)
base
what is the function of carbon in a atom
bonds the molecules together
is sand hydrophilic or hydrophobic?
hydrophobic