ZK
Zybrea Knight
Answers (10)
ZK
Answered
If a gas mixture is made of 220 torr of oxygen and 740 torr of helium, what is its total pressure?
A) 960 torr
B) 520 torr
C) 960 atm
D) 520 atm
A) 960 torr
B) 520 torr
C) 960 atm
D) 520 atm
On Jun 22, 2024
A
ZK
Answered
List three commercial products which are composed primarily of alkanes.
On Jun 14, 2024
natural gas, gasoline, kerosene, heating oil, lubricating oil, liquefied petroleum gas, jet fuel, diesel oil, petroleum jelly
ZK
Answered
Common table salt, sodium chloride, is an example of what?
A) A mixture
B) An element
C) A homogeneous mixture
D) A compound
A) A mixture
B) An element
C) A homogeneous mixture
D) A compound
On Jun 09, 2024
D
ZK
Answered
What is the density of a piece of glass that has a volume of 2.34 mL and a total mass of 8.42 g?
A) 6.08 g/mL
B) 0.280 g/mL
C) 3.60 g/mL
D) 4.21 g/mL
A) 6.08 g/mL
B) 0.280 g/mL
C) 3.60 g/mL
D) 4.21 g/mL
On Jun 04, 2024
C
ZK
Answered
How is stoichiometry best defined?
A) The use of chemical equations for determining the materials in a given chemical calculation
B) The use of balanced chemical equations for identifying the materials in a given chemical reaction
C) The use of unbalanced chemical equations for quantifying the amount of materials in a given chemical reaction
D) The use of balanced chemical equations for quantifying the amount of materials in a given chemical reaction
A) The use of chemical equations for determining the materials in a given chemical calculation
B) The use of balanced chemical equations for identifying the materials in a given chemical reaction
C) The use of unbalanced chemical equations for quantifying the amount of materials in a given chemical reaction
D) The use of balanced chemical equations for quantifying the amount of materials in a given chemical reaction
On May 12, 2024
D
ZK
Answered
What is critical mass?
A) The amount of 92235U{ }_{92}^{235} \mathrm{U}92235U needed to produce a chain reaction
B) The amount of 92235U{ }_{92}^{235} \mathrm{U}92235U needed to harm a person who is exposed to it
C) The amount of 92238U{ }_{92}^{238} \mathrm{U}92238U needed to produce a chain reaction
D) The amount of 92238U{ }_{92}^{238} \mathrm{U}92238U needed to harm a person who is exposed to it
A) The amount of 92235U{ }_{92}^{235} \mathrm{U}92235U needed to produce a chain reaction
B) The amount of 92235U{ }_{92}^{235} \mathrm{U}92235U needed to harm a person who is exposed to it
C) The amount of 92238U{ }_{92}^{238} \mathrm{U}92238U needed to produce a chain reaction
D) The amount of 92238U{ }_{92}^{238} \mathrm{U}92238U needed to harm a person who is exposed to it
On May 08, 2024
A
ZK
Answered
Do all primary iodides react with N3- at the same rate via the SN2 mechanism? Explain.
On May 04, 2024
No, not all primary alkyl react with N3- at the same rate via the SN2 mechanism. Some primary iodides are more hindered than others. (CH3)3CCH2I and CH3CH2I are both primary, but (CH3)3CCH2I is significantly more hindered. Additionally, some primary iodides have increased activity due to a benzylic or allylic positioning.
ZK
Answered
The sodium or potassium salt of a fatty acid is known as a ________.
On May 02, 2024
soap