WorksheetsUIL Science Level 2 Jack
Total questions: 10
Worksheet time: 10mins
In a phospholipid, the fatty acid tails are________________ and
the “head,” which is made of phosphate and choline,
is ____________________________ .
hydrophobic; hydrophobic
hydrophobic; hydrophilic
hydrophilic; hydrophilic
hydrophilic; hydrophobic
Which tissue is excitable, conductive, and under
voluntary control?
skin
skeletal muscle
autonomic neurons
nervous tissue
cardiac muscle
Anything associated with a microbial pathogen that
enhances its disease-causing ability is called a/an
antigen.
antibody.
etiologic agent.
virulence factor.
growth factor.
The esophagus is a muscular tube that belongs to
which body organ system?
lymphatic
digestive
nervous
respiratory
endocrine
How many atoms are in one mole of C6H14?
6.022 × 1023
1.204 × 1024
6.022 × 1024
1.204 × 1025
6.022 × 1025
What is the molar mass of gaseous dinitrogen
tetroxide?
30.01 g/mol
44.02 g/mol
46.01 g/mol
88.04 g/mol
92.02 g/mol
What is the sum of the coefficients when this
chemical equation is balanced?
Fe + H2SO4 → Fe2(SO4)3 + H2
12
9
8
7
4
What is the mass percent iron in Fe2O3?
30.06%
34.97%
55.85%
69.94%
111.70%
How do the intermolecular forces in solid wax
compare to the intermolecular forces in molten
wax?
Solid wax has hydrogen bonding but molten
wax only has dipole-dipole forces.
Solid wax has hydrogen bonding but molten
wax only has dispersion forces.
Solid wax has dipole-dipole attractions, but
molten wax only has dispersion forces.
Solid wax has dispersion forces and molten wax
has no intermolecular forces.
The intermolecular forces in solid wax and in
molten wax are the same.
What is the name of the compound Cu2O?
copper oxide
copper(I) oxide
copper(II) oxide
cupric oxide
dicopper monoxide
