1. Science
  2. Biology
  3. please answer all questions thank you...

Question: please answer all questions thank you...

Question details

1) What are the fundamental building blocks of all matter? a. Atoms b. Compounds c. lons d. Molecules 2) How do hydrophobic molecules react with water? a. They are attracted to water b. They are absorbed by water c. They are repelled by water d. They are mixed with water 3) Substances that aregive up hydrogen ions when they dissolve in water. a. Basic b. Acidic c. Neutral d. Buffered 4) What is the main factor that contributes to carbons versatility? a. It has an equal number of protons and neutrons b. Its outer shell electrons are evenly spaced c. It has a four electrons in its valence shell d. It is a very large molecule 5) Of the following which are composed of amino acids a. Carbohydrates b. Proteins C. Lipids d. Nucleic acids
Part Two: Atomic Structure Complete the following table Particle Proton Neutror Electron Location Charge Part Three: Electrons and Vacancies The innermost shell of an atom has room for 2 electrons, shells after that have room for 8 electrons. The outermost shell of an atom is its valence shell. If that shell is full it is chemically inactive. If it has a vacancy it is chemically active. In an uncharged atom the number of protons and electrons are equal. Use atomic number (number of protons to help you complete the following chart. Number of electrons in the reactivity? Yes valence shell or No Element Number of Chemical electrons Hydrogen Helium Carbon Nitrogen Oxygen Neon
Name each of the following bonds. A) Two oxygen atoms equally share 2 pairs of electrons. B) An oxygen shares two pairs of electrons unequally, one from each of two hydrogens. C) NaCl is formed when an electron from sodium is transferred to the chlorine. D) Two water molecules are attracted to each other. Part Six: Chemical Formulas and Reactions Below is a chemical reaction. Answer the questions. C&H1206+602 6CO2+ 6H20 What are the reactants? What are the products? How many of each atom are on either side of the arrow? Carbon Hydrogen Oxygen Is the reaction balanced?
Water has three important properties that are important to biological organisms. They are listed below; match them to the process being described. A Water is an excellent solvent B Water molecules are cohesive and adhesive C Water has a high surface tension D Water has high heat capacity E Ice is less dense that water Water flows Ice forms on lakes in the winter The ocean is salty Sweating is an effective method to cool the body water can dome of the top of a glass
use the following definitions and describe each of the substances belovw pH of 14-12 Strong base pH of 8.1-11.9 Weak base pH of 8-6 Nearly neutral pH of 5.9-3.1 Weak acid pH of 3-1 Strong acid Blood Gastric fluid Urine Oven cleaner Tums Part Seven: Carbohydrates Complete the following Carbohydrat Function General Structure Cellulose Starch Glycogen
Function Lipid Fats Phospholipid General Structure Waxes Steroids Part Nine: Proteins Level of Complexity Description Primary Secondary Tertiary Quaternary Part Ten: Nucleic acids General Structure Nucleic Acid Function DNA RNA ATP
Please answer all questions. Thank you   
Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution