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Recent questions in Chemistry
Which of the following characteristics is an important feature of a tungsten electrode? a) It has a low melting point. b) It has the ability to penetrate deeply. c) It has a high melting point. d) It has
Pankeel
asked
Oct 14, 2024
by
Pankeel
7.4k
points
Chemistry
high-school
1
answer
3
votes
117k
views
Which best describes the process of photosynthesis A. Carbon dioxide and oxygen are converted into glucose and water B. Carbon dioxide and water are converted into glucose and oxygen. C. Oxygen and glucose
Jalpesh
asked
Oct 14, 2024
by
Jalpesh
8.8k
points
Chemistry
college
1
answer
2
votes
98.0k
views
What requirements apply to sediment trap installations?
Andrey Topoleov
asked
Oct 14, 2024
by
Andrey Topoleov
8.1k
points
Chemistry
high-school
2
answers
2
votes
63.5k
views
Calculate the molality of each of the following solutions: (a) 30.2 g of sucrose (C₁₂H₂2O₁1) in 285 G of water. (b) 8.35 moles of ethylene glycol (C₂H₆O₂) in 1905 g of water.
Megaman
asked
Oct 14, 2024
by
Megaman
7.7k
points
Chemistry
high-school
1
answer
4
votes
187k
views
The combustion of 2.208 g of propanol (C₃H₇OH) increases the temperature of a bomb calorimeter from 298.00 K to 302.56 K. The heat capacity of the bomb calorimeter is 16.25 kJ/K . Determine Δ for the combustion
Jkteater
asked
Oct 14, 2024
by
Jkteater
8.6k
points
Chemistry
high-school
1
answer
2
votes
71.5k
views
Select the equilibrium constant expression for the following
AboulEinein
asked
Oct 14, 2024
by
AboulEinein
7.8k
points
Chemistry
high-school
1
answer
3
votes
188k
views
If compartment A represents the inside of a cell and compartment B the extracellular fluid, then with [K]i = 100 mM and [K]o = 10 mM as in the example above calculate the equilibrium potential for potassium.
Jordi
asked
Oct 14, 2024
by
Jordi
8.4k
points
Chemistry
high-school
1
answer
4
votes
179k
views
In a molecular compound, an oxygen atom typically forms how many bonds?
Kakayou
asked
Oct 14, 2024
by
Kakayou
7.7k
points
Chemistry
college
1
answer
4
votes
128k
views
Both the 16O and 18O isotopes occur in water molecules. a. True b. False
Plok
asked
Oct 14, 2024
by
Plok
8.0k
points
Chemistry
high-school
1
answer
0
votes
183k
views
Explain how a pile of ashes has the same mass as the original log before it was burned. What is the law that defines this (assuming a completely dry log and no combustable products escaped in the air)
Lanting Guo
asked
Oct 14, 2024
by
Lanting Guo
8.1k
points
Chemistry
high-school
1
answer
4
votes
127k
views
The amino acids in hemoglobin (or any protein) uniformly have which of the following configurations? - D - R - L - S #KhanAcademy
Matthew Lueder
asked
Oct 14, 2024
by
Matthew Lueder
7.1k
points
Chemistry
high-school
1
answer
0
votes
15.3k
views
Consider the following intermediate chemical equations. 1. 2H2(g) + O2(g) → 2H2O(1) 2. H2(g) + F2(g) → 2HF(g) In the final chemical equation, HF and O2 are the products that are formed through the reaction
Zonkflut
asked
Oct 14, 2024
by
Zonkflut
8.4k
points
Chemistry
high-school
1
answer
5
votes
32.8k
views
Why does sodium want to bond with chlorine? Remember that an atom wants to have 8 valence electrons. Explain how the giving and taking of electrons works between sodium and chlorine. a. Sodium wants to
Eric Zheng
asked
Oct 14, 2024
by
Eric Zheng
7.7k
points
Chemistry
high-school
1
answer
1
vote
5.4k
views
Crystal Formation Size when there is Immediate Cooling (hours to days)
Ted Benson
asked
Oct 14, 2024
by
Ted Benson
8.5k
points
Chemistry
high-school
1
answer
1
vote
7.6k
views
What surfaces need to be cleaned and sanitized when closing BOH?
Shishupal Shakya
asked
Oct 14, 2024
by
Shishupal Shakya
7.7k
points
Chemistry
high-school
1
answer
0
votes
46.2k
views
Consider the following equation that describes the complete combustion of propane, C₃H₈. C₃H₈ + 5O₂ -> 3CO₂ + 4H₂O The bond energies are: C-H 416 kJ/mol; C-C 356 kJ/mol; O=O 498 kJ/mol; C=O 803 kJ/mol;
Frank Fang
asked
Oct 14, 2024
by
Frank Fang
8.1k
points
Chemistry
high-school
1
answer
0
votes
228k
views
Help. Which of the following human activities could lead to more frequent red tides? A. Adding fertilizers to plants in your yard. B. Oil left behind by cars driving on city roads. C. Runoff from factories
Sakthisundar
asked
Oct 14, 2024
by
Sakthisundar
8.0k
points
Chemistry
college
1
answer
5
votes
44.2k
views
what would you expect to happen to a population where the birth rate is about equal to the death rate?
Gwendolen
asked
Oct 14, 2024
by
Gwendolen
7.4k
points
Chemistry
college
1
answer
2
votes
175k
views
Which molecule is propane? O A. = CH3 Н О в. н I Н. C=C -о-н Н ннннн | | | | | ( с. н-с-с-с-с-с-н ||||| ннннн ннн | | | () D. H-C-C-с-н | | | ННН
Mike McCabe
asked
Oct 14, 2024
by
Mike McCabe
8.1k
points
Chemistry
college
1
answer
3
votes
2.7k
views
What do metals form when they corrode?
Netaholic
asked
Oct 14, 2024
by
Netaholic
7.8k
points
Chemistry
high-school
1
answer
3
votes
103k
views
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