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Recent questions in Chemistry
Which of the following ions is most attracted to water? A) Cs+1 B) Rb+1 C) Ba+2 D) Ra+2
MichaJlS
asked
Oct 14, 2024
by
MichaJlS
8.4k
points
Chemistry
high-school
1
answer
3
votes
89.6k
views
What is the charge on the particles that form the beam? Will they be attracted to or repelled from the positively charged gold nuclei?
Stkent
asked
Oct 14, 2024
by
Stkent
8.0k
points
Chemistry
high-school
1
answer
1
vote
53.2k
views
In humans, most of the building blocks necessary for the synthesis of organic compounds come from the a) Proteins b) Carbohydrates c) Lipids d) Nucleic acids
Mark Kegel
asked
Oct 14, 2024
by
Mark Kegel
7.9k
points
Chemistry
high-school
1
answer
2
votes
115k
views
1.0 x 10-10 moles of HCl are added to 1.0 L of pure H2O. What is the pH? A) 10.0B) 8.0C) 1.0D) 0.0E) none of these
Yoly
asked
Oct 14, 2024
by
Yoly
8.3k
points
Chemistry
high-school
1
answer
2
votes
118k
views
Calculate number of moles present in 9.03*10{23} atoms of sulphur.
Janzoner
asked
Oct 14, 2024
by
Janzoner
7.8k
points
Chemistry
high-school
1
answer
0
votes
174k
views
.A cylinder of compressed gas has a pressure of 4.9 atm in one day. The next day, the same cylinder of gas has a pressure of 4.7 atm, and its temperature is 8°C. What was the temperature on the previous
Boherna
asked
Oct 14, 2024
by
Boherna
8.2k
points
Chemistry
college
1
answer
0
votes
211k
views
What is the difference between polysaccharides polypeptides and polynucleotides?
Xhacker Liu
asked
Oct 14, 2024
by
Xhacker Liu
7.7k
points
Chemistry
high-school
1
answer
5
votes
209k
views
The exponential function f, represented in the table, can be written as f(x) = a.br. x f(x) 0 15 19 Complete the equation for f(x). f(x)=[
Fejta
asked
Oct 14, 2024
by
Fejta
7.9k
points
Chemistry
high-school
1
answer
4
votes
135k
views
Which of the following should be considered for information regarding local requirements for disposal of pesticide containers: A. The department of pesticide regulation B. The structural pest control board
Brian Jorgensen
asked
Oct 14, 2024
by
Brian Jorgensen
8.2k
points
Chemistry
high-school
1
answer
4
votes
208k
views
What mass of 2-bromopropane could be prepared from 25.5 g of propene? Assume a 100% yield of the product. a) 25.5 g b) Greater than 25.5 g c) Less than 25.5 g d) Not enough information to determine
Ricardo Vieira
asked
Oct 14, 2024
by
Ricardo Vieira
7.3k
points
Chemistry
high-school
1
answer
1
vote
133k
views
Which terms refer to distance covered over a given amout of time
Tomas Katz
asked
Oct 14, 2024
by
Tomas Katz
7.9k
points
Chemistry
high-school
1
answer
0
votes
119k
views
Which equation represents a fission reaction? ON+H¹50 8 15 94 O235 U+n140 Cs +34 Rb+2/n 92 55 37 O Be+He 12C+!n 239 ONp 93 23Pu+ e 94 -1
Adrian Clark
asked
Oct 14, 2024
by
Adrian Clark
8.1k
points
Chemistry
college
1
answer
3
votes
204k
views
Helium contained in a closed, rigid tank, initially at 50°C, 5 bar, and a volume of 2 m3, is heated to a final pressure of 8 bar. Assume the ideal gas model for the helium. Kinetic and potential energy
Waleed Mahmood
asked
Oct 14, 2024
by
Waleed Mahmood
8.5k
points
Chemistry
high-school
1
answer
5
votes
230k
views
Which statement is correct about metals O they have 7 valence electrons O they tend to gain electrons when making ionic bond O they tend to lose electrons when making ionic bond O they prefer to share
ROunofF
asked
Oct 14, 2024
by
ROunofF
8.7k
points
Chemistry
high-school
1
answer
5
votes
45.9k
views
Suppose that at a pressure of 1 atm and temperature 300 K, a given material has two possible phases: liquid (L) and solid (S). We start the system with - NL=5 moles in the liquid phase and - NS=2 moles
Satoshi
asked
Oct 14, 2024
by
Satoshi
8.1k
points
Chemistry
high-school
1
answer
2
votes
9.7k
views
Heisenberg's uncertainty principle says that you cannot know the momentum or the position of an electron exactly. a) true b) false
Pankaj Saha
asked
Oct 14, 2024
by
Pankaj Saha
7.1k
points
Chemistry
high-school
1
answer
4
votes
84.8k
views
Why is 2AgNO3 + 2Li --> 2LiNO3 + 2Ag balanced?
BikerP
asked
Oct 14, 2024
by
BikerP
7.5k
points
Chemistry
high-school
1
answer
2
votes
44.3k
views
The boiling point of bromine is 59°C. The boiling point of radon is 121 degrees Celsius cooler than bromine. What is the boiling point of radon?
Sum
asked
Oct 14, 2024
by
Sum
7.5k
points
Chemistry
high-school
1
answer
5
votes
23.8k
views
Which of the following did you include in your response? A) A crystal lattice is a solid in which the particles are arranged in a regular, repeating pattern. B) A molecule is a discrete unit of atoms that
Skyler Saleh
asked
Oct 14, 2024
by
Skyler Saleh
8.7k
points
Chemistry
high-school
1
answer
3
votes
144k
views
Natural gas is _______ volatile than oil, and consists of ________ hydrocarbon molecules a) more; longer b) more; shorter c) less; longer d) less; shorter
Kreig
asked
Oct 14, 2024
by
Kreig
7.4k
points
Chemistry
high-school
1
answer
1
vote
126k
views
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