WorksheetsBSMT 1-1_CHEM6B FINALS
Total questions: 31
Worksheet time: 3hrs 40mins
How close a measurement is to the accepted value is called..
Accuracy
Precision
Significant
Estimate
How close a set of measurements are to each other...
accuracy
precision
% error
luminous intensity
How close a measurement is to the accepted value...
accuracy
precision
electric current
adaptability
The unit cm3 measures
length
area
volume
time
Which pair of quantities determines the density of a substance?
mass and weight
volume and weight
volume and concentration
volume and mass
Carbon is ...
the basic element that is part of all organic compounds.
the basic element of all molecules
the simples molecules of life.
What is the main capacity of Carbon?
To make short compound chains.
To make unstable bonds with other carbon atoms.
To make stable bonds/links with other carbon atoms .
Carbon is...
a metallic element
a non-metallic element
an acid
How many electrons are in the high energy level of Carbon?
one
two
four
What is the name of this bond C=C?
single bond
double bond
triple bond
What is the suffix for double bond hydrocarbons ?
-ol
-ene
-ane
-one
Solutions that have more OH– ions than H+ ions are
acids
bases
enzymes
neutral
Solutions that have more H+ ions than OH- ions are
acids
bases
enzymes
neutral
What type of solution is formed when the H+ ions equal the OH- ions?
acidic
basic or alkaline
neutral
enzymatic
What does pH stand for?
purple hair
potential Hydrogen
perfect Hydrogen
phosphorous Hydrogen
Lewis acid-base concept have following characteristics except.
Formation of adduct
Formation of coordinate covalent bond
Donation and acceptance of pair of electrons
Donation and acceptance of proton
An acid has a pH
higher than 7
7
lower than 7
higher than 14
acids taste
Salt
Sour
Sweet
Bitter
bases taste
Bitter
Sour
Sweet
Salt
Elaborate the difference between the 3 acid-base concept discussed. 10 points.
