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WorksheetsPraxis II missed practice questions
Total questions: 16
Worksheet time: 4hrs 0mins
One similarity between the bohr and quantum mechanical models of the atom is that elements
are embedded in the nucleus
revolve around the nucleus in circular orbits
are only in certain allowed energy states
behave as particles and not as waves
When a substance undergoes a phase change from a gas to liquid at its boiling point, which of the following properties of the substance always decreases?
Density
Mass
Temp
Entropy
Which best accounts for the fact that metals are good conductors for electricity?
Valence electrons are transferred from one atom to another to form positiive and negative ions
Balence electrons are shared between neighboirng atmos only
Valence electrons are delocalized in a crystal lattice of positive ions
Polar covalent bonds form between the atoms
Which of the following minerals effervesces when placed in an acid solution?
Quartz
Calcite
Feldspar
Magnetite
Which is not true concerning correlation?
Correlation can show the relationship between varibles
correlation can show cause and effect
Correlation can show linear relationships
Correlation can show nonlinear relationships
According to Kinetic theory of matter what is true?
Average KE inversley proportional to the square of the average velocity
Average KE incersely proportional to the average velocity
Average KE is directly proportional to the square of the average
Average KE is directly proportional to teh average velocity
Which of the follwoing is not true
Exothermic reaction release heat
Melting of ice is an endothermic process
burning of butane is an exothermic process
charge in enthalpy is positive for an exothermic reaction
On what does the energy of a photon depend
Speed
Mass
Frequency
Amplitude
Image of a double concave lens
Reduce, upright, virtual
Enlarged, upright, virtual
Reduced, inverted, virtual
Reduced, upright, Real
What is formed when the plasma membrane surrounds a particle outside the cell
Golgi bodies
Rought ER
Secretory vesicles
Endocytic vesicles
Prokaryotic and Eukaryotic cells are similar in which way
membrane bound organelles
protein studded DNA
Nucleus
Integral membrane proties in membrane
What is activated to reduce concentration of NADH
Glycolysis
Krebs cycle
Lactic acid fermentation
Oxidative phosphorylation
Which chemical moieties forms the backbone of DNA
Nitrogenous bases
Glycerol
Amino Groups
Pentose and phospate
Which of the following is the substrate of DNA ligase
Okazaki fragments
RNAprimer
Single-Strand Binding protein
Leading strand
Which is a type of physical weathering
Oxidation
Hydrolysis
Exfoliation
Carbonation
Mineraloids are?
organic compound found in rock
inorganic solids containing two or more minerals with different crystalline structurs
inorganic solids containing one or more minerals with the same crystalline structure.
Minerals that lack a crystalline structure
