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Worksheets(1Q) General Chemistry 1 - Review
Total questions: 18
Worksheet time: 11mins
Name
Class
Date
1.
Compounds such as n-hexane, or C6H14, have been observed to have a definite volume and assume the shape of their container. In what state of matter would methanol be classified?
a)
Gas
b)
Liquid
c)
Plasma
d)
Solid
2.
Upon analyzing a liquid sample, its boiling point was determined. Is boiling point an INTENSIVE or an EXTENSIVE property?
a)
Intensive Property
b)
Extensive Property
c)
None
d)
None
3.
Candace Flynn, on her first day of internship, was asked to prepare a hot beverage from the office pantry's supply of tea bags. What separation technique was demonstrated?
a)
Filtration
b)
Fractional Crystallization
c)
Distillation
d)
Solid-Liquid Extraction
4.
If you were given an isotope of carbon presented as Carbon-14, what would be the isotope's mass number?
a)
9
b)
14
c)
38
d)
cannot be determined
5.
Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu, abundance = 72.15 %) and rubidium-87 (atomic mass – 86.9092 amu; abundance = 27.85 %). WHAT WOULD BE THE ATOMIC WEIGHT OF RUBIDIUM?
a)
83.9876 amu
b)
84.9118 amu
c)
85.0876 amu
d)
85.4681 amu
6.
What would be the orientation of a molecule that is connected to another atom by a WEDGE?
a)
behind the picture
b)
in front of the plane
c)
along the plane
d)
unidentifiable
7.
Ion species such as NO2-, CO32-, and PO43- are considered as what type of ion?
a)
Anion
b)
Cation
c)
Monoatomic ion
d)
Polyatomic ion
8.
If in a given compound with a molar mass of 46.068 grams there is about 24.02 grams of carbon, what would be the mass percent of carbon, %C?
a)
23.01 %C
b)
52.14 %C
c)
55.53 %C
d)
90.25 %C
9.
Refer to the UNBALANCED chemical reaction: Al(s) + Cl2(g) AlCl3(s). How many molecule/s of aluminum is/are present in a BALANCE chemical reaction?
a)
1
b)
2
c)
3
d)
4
10.
Refer to the UNBALANCED chemical reaction: CH3OH + O2 CO2 + H2O. If about 45 g of oxygen (O2) are used up in the combustion, how much carbon dioxide is produced?
a)
41.26 g CO2
b)
45.75 g CO2
c)
67.84 g CO2
d)
80.05 g CO2
11.
Which among the following would be the characteristic that identifies with a excess reactant/reagent?
a)
The reactant that gave the higher value of product
b)
The reactant that gave the smaller value of product
c)
The reagent that was actually obtained from a reaction
d)
The reagent in which its amount was the result of excess compounds
12.
What would be Cabanatuan City's environmental air pressure in PASCALS if a chemist had recorded an average atmospheric pressure of 0.9867 atm?
a)
0.9998
b)
1.5
c)
759.85
d)
99977
13.
A sample of gas at 288.15 K has a volume of 3.15 L. What volume will this gas sample occupy at 298.15 K?
a)
3.26 L
b)
3.79 L
c)
5.57 L
d)
8.36 L
14.
For a family gathering, Lorene was asked to cook some beef stwe. To save time and to make sure the food is fully cooked, she used a pressure cooker. What would happen to the container’s pressure (P) if she increased the temperature (T)?
a)
↑P, ↑T
b)
b. ↓P, ↑T
c)
c. ↓P, ↓T
d)
cannot be determined
15.
Using the ideal gas expression, what volume would 3.15 moles of helium occupy at 325.15 K and a pressure of 2.50 atm?
a)
25.02 L
b)
29.65 L
c)
33.62 L
d)
67.98 L
16.
In a mixture of gases, each gas exerts a certain pressure as if it was alone. The total pressure of a mixture of gases would be obtained from the sum of all the partial pressures. Which among the provided gas laws was being identified?
a)
Boyle's Law
b)
Charles' Law
c)
Dalton's Law
d)
Graham's Law
17.
In an experiment conducted by Odessa, 2 types of gases were transferred in a vessel. Gas A had a higher molar mass than Gas B. Which between the two would travel faster within the container?
a)
Gas A
b)
Gas B
c)
Gas A travels at the same speed with Gas B
d)
The experiment needs more information
18.
What are your thoughts about the discussions in General Chemistry 1? (draw an expression or an emoji)
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