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5 Written questions

5 Matching questions

  1. Identify the 4 levels of protein structure.
  2. An ionic bond forms when? A covalent bond forms when?
  3. What is a molecular formula? A structural formula?
  4. What is an Ion?
  5. Where are electrons, protons, and neutrons located within an atom?
  1. a Primary, Secondary, Tertiary, Quaternary
  2. b Ionic: ions with opposite electrical charges attract
    Covalent: a chemical bond between atoms that share electrons.
  3. c Molecular: consists of the symbols of the elements in the molecule with numerical subscripts that indicate how many atoms of each element are present.
    Structural: representation of the way atoms bond in a molecule.
  4. d the nucleus of an atom.
  5. e Atoms that gain or lose electrons because electrically charge.

5 Multiple choice questions

  1. Water
  2. The body regularly gains and loses these electrolytes, but they must be present in certain concentrations, both inside and outside cells, to maintain homeostasis.
  3. Acid: substance that releases hydrogen ion
    Base: substance that release ions that can combine with hydrogen ions
    Salt: substance formed by the reaction between and acid and a base.
  4. they are chemicals that resist pH change. They combine with hydrogen ions when these ions are in excess or they donate hydrogen ions when these ions are depleted.
  5. Molecule: two or more atoms may combine to form a distinctive type of particle.
    Compound: substance composed of two or more chemically bonded elements.

5 True/False questions

  1. Describe two ways that atoms may combine with other atoms.Synthesis: when 2 or more atoms, ions, or molecules bond to form a more complex structure A+B->AB
    Decomposition: bonds of a reactant molecule break to form simpler molecules, atoms, or ions AB->A+B
    Exchange: parts of 2 different types of molecular trade positions as bonds are broken and new are formed AB + CD-> AD+ BC
    Reversible: product or products can change back to reactant or reactants A+B<-> AB

          

  2. What is atomic radiation?Energy or atomic fragments they emit.

          

  3. Describe 4 types of chemical reactions.Synthesis: when 2 or more atoms, ions, or molecules bond to form a more complex structure A+B->AB
    Decomposition: bonds of a reactant molecule break to form simpler molecules, atoms, or ions AB->A+B
    Exchange: parts of 2 different types of molecular trade positions as bonds are broken and new are formed AB + CD-> AD+ BC
    Reversible: product or products can change back to reactant or reactants A+B<-> AB

          

  4. How does the number of protons in a water molecule compare with the number of electrons?the nucleus of an atom.

          

  5. Identify 2 types of macromolecules in which hydrogen bonds are important parts of the structure.Primary, Secondary, Tertiary, Quaternary

          

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