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Recent questions in Chemistry
Which of the following is an example of a neutral atom?
Coldbuffet
asked
Dec 20, 2024
by
Coldbuffet
7.3k
points
Chemistry
college
1
answer
0
votes
5.0k
views
Which of the following combinations of gases may be used for flame cutting of ferrous materials? a) Air-acetylene. b) Oxygen-butane. c) Nitrogen-acetylene. d) Oxygen-acetylene. e) Natural gas.
Ftrujillo
asked
Dec 20, 2024
by
Ftrujillo
7.7k
points
Chemistry
high-school
1
answer
3
votes
34.9k
views
An obligate halophile will burst if placed in fresh water
Praveer Gupta
asked
Dec 20, 2024
by
Praveer Gupta
8.3k
points
Chemistry
high-school
1
answer
0
votes
209k
views
4. 20kg of polybutadiene are vulcanized with 4.8 kg sulfur. what fraction of the possible crosslink sites is bonded to sulfur crosslinks, assuming that, on the average, 4.5 sulfur atoms participate in
Will Ryan
asked
Dec 20, 2024
by
Will Ryan
7.8k
points
Chemistry
high-school
1
answer
0
votes
53.7k
views
Physicians tend to use units of calories ,in part because that is what their patients use and understand .Food “Calories “ are actually calories. How many calories are in a calorie? A.10,000 B.1,000 C.
Gotham
asked
Dec 20, 2024
by
Gotham
8.2k
points
Chemistry
college
1
answer
0
votes
202k
views
In the lab, you found the specific gravity of hexanol to be 0.679. According to a reference chart, the specific gravity of hexanol is 0.813. Calculate the percent error. A) 13.1% error B) 19.0% error C)
Paul Strack
asked
Dec 20, 2024
by
Paul Strack
8.6k
points
Chemistry
high-school
1
answer
4
votes
61.4k
views
Which of the following foods are rich sources of monounsaturated fatty acids? A) butter and lard B) olive oil and cashew nuts C) safflower and corn oils D) coconut and palm oil
Brian Reinhold
asked
Dec 20, 2024
by
Brian Reinhold
8.6k
points
Chemistry
high-school
1
answer
4
votes
38.3k
views
SN1 and E1 reactions are generally not observed at ___ hybridized centers
David Bemerguy
asked
Dec 20, 2024
by
David Bemerguy
8.6k
points
Chemistry
high-school
1
answer
4
votes
221k
views
Give the spectator ions for the reaction that occurs when aqueous solutions of MgSO₃ and HI are mixed. a. Mg²⁺ and I⁻ b. H⁺ and I⁻ c. H⁺ and SO₃²⁻ d. SO₃²⁻ and Mg²⁺ e. no spectator ions are present.
Suhprano
asked
Dec 20, 2024
by
Suhprano
8.2k
points
Chemistry
high-school
1
answer
0
votes
143k
views
Consider a molecule, which has an octahedral arrangement of electron pairs, two of which are lone pairs?
Abder
asked
Dec 20, 2024
by
Abder
8.9k
points
Chemistry
high-school
1
answer
5
votes
19.8k
views
When 19.04 grams of methane (CH4) are burned (see equation below), how many moles of oxygen gas (O₂) will be used? Please round your answer to two digits after the decimal point and don't forget units
Stefan Norberg
asked
Dec 20, 2024
by
Stefan Norberg
8.4k
points
Chemistry
high-school
1
answer
2
votes
10.2k
views
How many moles are 1.20 x 10^35 formula units of calcium iodide?
ILYA Khlopotov
asked
Dec 20, 2024
by
ILYA Khlopotov
8.1k
points
Chemistry
high-school
1
answer
0
votes
189k
views
The oxidation number of manganese in KMno4is
Faller
asked
Dec 20, 2024
by
Faller
8.7k
points
Chemistry
high-school
1
answer
4
votes
77.6k
views
What volume of sulfur dioxide gas at 45°C and 723 mmHg will react completely with 0.870 L of oxygen gas at constant temperature and pressure? R = 0.08206 Lxatm/Kxmol 2SO₂(g) + O₂(g) → 2503(g) A. 1.74L
Kruczkowski
asked
Dec 20, 2024
by
Kruczkowski
8.6k
points
Chemistry
high-school
1
answer
4
votes
166k
views
Know different properties of metals and non metals. If given an element know whether metal or nonmetal from location on periodic table.
Ryan Kohn
asked
Dec 20, 2024
by
Ryan Kohn
8.3k
points
Chemistry
high-school
1
answer
4
votes
81.7k
views
Which one of the following acids is 100% ionized in aqueous solution? A) HCl B) H2SO4 C) HClO4 D) All of them
Dmitry Malugin
asked
Dec 20, 2024
by
Dmitry Malugin
8.5k
points
Chemistry
high-school
1
answer
5
votes
193k
views
Protein secondary structure is characterized by the pattern of hydrogen bonds between: A. Backbone amide protons and carbonyl oxygens. B. Backbone amide protons and side chain carbonyl oxygens. C. Side
Olivarsham
asked
Dec 20, 2024
by
Olivarsham
8.2k
points
Chemistry
high-school
1
answer
3
votes
7.2k
views
given the following electronegativities: Na=09 H=2.1 Cl= 3.0 what kind of compound molecules are they?
Dimitriy
asked
Dec 20, 2024
by
Dimitriy
7.1k
points
Chemistry
high-school
1
answer
4
votes
23.1k
views
How many valence electrons are in Group/Family 14 on the periodic table? Group/Family 18? A)4, 8 B)2, 8 C)5, 8 D)6, 8
Matt Howell
asked
Dec 20, 2024
by
Matt Howell
8.7k
points
Chemistry
high-school
1
answer
3
votes
134k
views
The nurse is evaluating the patients gas exchange intervention for effectiveness. Which does the nurse need to measure to show outcomes are positive? (Remember, ATTRIBUTES must be present for positive
MothOnMars
asked
Dec 20, 2024
by
MothOnMars
8.4k
points
Chemistry
high-school
2
answers
3
votes
68.6k
views
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