WorksheetsChemistry Part 2 Review
Total questions: 25
Worksheet time: 14mins
Al + O2 --> Al2O3
Which are the reactants in the following reaction?
2Mg + O2 ---> 2MgO
Mg and O2
MgO
Mg and MgO
O2 and MgO
The formula M1V1 = M2V2 is used when:
dissolving a solute in a solvent
diluting a solution
reacting an acid with a base
determining the pH of an acid
What is a mole?
6.022 x 1023 particles of any substance
A small burrowing animal
A dark spot on your skin
A spy
The mass of one mole of an element is equal to
its atomic number from the periodic table, but in amus.
its atomic mass from the periodic table, but in amus.
its atomic mass from the periodic table, but in grams.
its atomic number from the periodic table, but in grams.
Which of the following dimensional analysis setups will correctly convert 4.00x1023atoms of cobalt to moles of cobalt? How many moles of colbalt are there?
setup B : 0.664 mol Co
setup A: 2.41x1047mol Co
setup A : 0.664 mol Co
setup B: 2.41x1047mol Co
A sour taste is a characteristic of:
acids
bases
neutral
pH scale
Which is a characteristic of a base?
tastes sour
found mostly in foods
feels slippery
turn litmus paper red
For a solution, pH + pOH =
7
14
1.0 x 10-14
-log (1.0 x 10 -14)
If the pH of a solution is 4.0, what is the pOH?
4.0
10.0
1.0 x 10 -4
cannot be determined from the information
The pH of a solution is 8.43. What is the [H3O+]concentration?
3.7 x 10 -9
1.0 x 10-8.43
2.7 x 10-6
1.0 x 10-14
If the [OH-] of a solution is 2.7 x 10-4 M, the pOH of the solution is
10.44
1.00
3.57
-4.43
