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Recent questions in Chemistry
A. Order the three types of intermolecular forces (dipole-dipole, London force, hydrogen bonds) in order from weakest to strongest. ______(weakest) - London forces - Dipole-dipole forces - Hydrogen bonds
Josecampos
asked
Dec 25, 2024
by
Josecampos
7.7k
points
Chemistry
high-school
1
answer
0
votes
60.8k
views
Can you prepare 1 liter of a 0.5-molar glucose solution? Show your work here. a) Yes, by dissolving 18 g of glucose in 1 liter of water. b) No, because glucose doesn't dissolve in water.
Gumzle
asked
Dec 25, 2024
by
Gumzle
8.0k
points
Chemistry
high-school
1
answer
0
votes
32.3k
views
4. Use the balanced chemical equation from the last question to solve this situation: You combine 0.5 moles of Na2CO3 with enough CaCl2 that your compound reacts completely. How many moles of NaCl would
Daath
asked
Dec 25, 2024
by
Daath
9.1k
points
Chemistry
college
1
answer
3
votes
17.0k
views
What is not true of polymers? A) they release substances at a microscopically controlled rate B) they are chemical compounds C) they are formed by small molecules D) they are botanicals
Sam Edwards
asked
Dec 25, 2024
by
Sam Edwards
9.0k
points
Chemistry
high-school
1
answer
5
votes
181k
views
How many double bonds are in the Lewis structure for hydrogen fluoride, HF? - none - one - two - three
Orionpax
asked
Dec 25, 2024
by
Orionpax
8.7k
points
Chemistry
high-school
1
answer
1
vote
60.5k
views
In an acid-base neutralization titration, where the end point is a neutral solution, the unknown concentration of the receiving solution can be calculated because __________?
Maxim Makhun
asked
Dec 25, 2024
by
Maxim Makhun
8.3k
points
Chemistry
high-school
1
answer
1
vote
98.2k
views
Analysis: 1. List the 5 metals (copper, iron, magnesium, lead, silver) in order of ease of reduction (most easily reduced first, least easily reduced last)
Wolfert
asked
Dec 25, 2024
by
Wolfert
8.0k
points
Chemistry
high-school
1
answer
0
votes
186k
views
Consider a battery with the overall reaction: Cu(s) + 2Ag+(aq) ⟶ 2Ag(s) + Cu²+(aq). If a particular dead battery was found to have [Cu²+] = 0.11M, what was the concentration of silver ion?
Matra
asked
Dec 25, 2024
by
Matra
7.7k
points
Chemistry
high-school
1
answer
1
vote
119k
views
A plant makes glucose during photosynthesis. Glucose consists of the elements carbon, hydrogen, and oxygen. What is the source of the elements for the glucose that the plant makes? Construct an explanation.
Hitheredude
asked
Dec 25, 2024
by
Hitheredude
8.4k
points
Chemistry
middle-school
2
answers
2
votes
473
views
A sample of sulfur hexafluoride gas occupies 8.50 L at 165°C. Assuming that the pressure remains constant, what temperature (in °C) is needed to reduce the volume to 3.70 L?
Alfred Fuller
asked
Dec 25, 2024
by
Alfred Fuller
8.3k
points
Chemistry
high-school
1
answer
5
votes
220k
views
Calculate the boiling point of a solution containing 1.04g glucose (molar mass= 180g mol-') lies in 80.2g water. [Boiling point of pure water = 373.15K, K,for water = 0.52K kg mol-']
Jakob Bowyer
asked
Dec 25, 2024
by
Jakob Bowyer
8.6k
points
Chemistry
high-school
1
answer
2
votes
206k
views
What causes polyphosphate reversion to orthophosphate? A) Temperature B) pH C) Pressure D) Concentration
GPicazo
asked
Dec 25, 2024
by
GPicazo
7.7k
points
Chemistry
high-school
1
answer
2
votes
137k
views
Consider a silicon p-n junction with an n-type doping concentration of 1016 cm-3 and forward biased with V=0.8V at 300K. Calculate the minority carrier hole concentration at the edge of the space charge
Nikita Patil
asked
Dec 25, 2024
by
Nikita Patil
7.4k
points
Chemistry
college
1
answer
1
vote
34.7k
views
Plants go through seasonal changes from summer to fall because temperatures ___________. A: begin to cool daylight hours decrease. B: begin to cool and daylight hours in increase. C: warm up in daylight
Alireza Davoodi
asked
Dec 25, 2024
by
Alireza Davoodi
8.9k
points
Chemistry
college
2
answers
2
votes
74.1k
views
Nitrogen reacts with oxygen to give N2O3 and N2O5, respectively. This data illustrates which law of stoichiometry? State the law. a. Law of Conservation of Mass - Matter cannot be created or destroyed
Hristo Georgiev
asked
Dec 25, 2024
by
Hristo Georgiev
8.2k
points
Chemistry
high-school
1
answer
3
votes
98.1k
views
A gas occupies 12 L of a container at 2.75 atm. What is the volume of the gas if the pressure becomes 7.25atm?
PrashanD
asked
Dec 25, 2024
by
PrashanD
8.3k
points
Chemistry
high-school
1
answer
5
votes
36.4k
views
Which type of molecular orbital is used to describe a buildup of electron density along the axis connecting two atomic nuclei to form a bond? A. sigma star B. pi star C. px D. sigma E. pi
Carl Groner
asked
Dec 25, 2024
by
Carl Groner
8.3k
points
Chemistry
high-school
1
answer
0
votes
76.0k
views
A 760 mL gas sample at STP is compressed to a volume of 207 mL, and the temperature is increased to 33°C. What is the new pressure of the gas in Pa? Answer in units of Pa. Answer in units of Pa.
F Masruri
asked
Dec 25, 2024
by
F Masruri
7.8k
points
Chemistry
college
1
answer
4
votes
213k
views
The monomer tetrafluoroethene forms which polymer used for coating frypans? a) Polyethylene b) Polyvinyl chloride c) Polystyrene d) Polytetrafluoroethylene (PTFE)
Dmytro Dadyka
asked
Dec 25, 2024
by
Dmytro Dadyka
7.9k
points
Chemistry
high-school
1
answer
1
vote
34.3k
views
What is the net reaction of the reaction series below? 3 CO₂(g) + 4 H₂O(g) → C₃H₈(g) + 5 O₂(g) 3 C(s) + 3 O₂(g) → 3 CO₂(g) 4 H₂(g) + 2 O₂(g) → 4 H₂O(g)
CVertex
asked
Dec 25, 2024
by
CVertex
8.4k
points
Chemistry
high-school
1
answer
3
votes
65.8k
views
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