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Recent questions in Chemistry
What is a reaction rate? OA. The amount of products produced in a reaction OB. The speed at which a reaction occurs OC. The frequency of reactant collisions O D. The energy required for a reaction to happen
Jafet
asked
Dec 14, 2024
by
Jafet
8.5k
points
Chemistry
high-school
1
answer
3
votes
98.1k
views
In 2005, scientists found mats of bacteria in a very low-oxygen portion of the Black Sea. The bacteria consume methane and carbon dioxide, which is very unusual. The length of one of the mats was 54.0
Akkonrad
asked
Dec 14, 2024
by
Akkonrad
7.8k
points
Chemistry
college
1
answer
4
votes
32.9k
views
A scientist makes a solution that contains 22.0 grams of hydrogen chloride gas, HC(g), in 100. grams of water, H2O(I), at 20. °C. This process is represented by the balanced equation below. HCI(g) -- H+(aq)
Thisarattr
asked
Dec 14, 2024
by
Thisarattr
7.7k
points
Chemistry
college
1
answer
2
votes
184k
views
helium–neon laser light ( = 632.8 nm) is sent through a 0.330-mm-wide single slit. what is the width of the central maximum on a screen 3.00 m from the slit?
B Robster
asked
Dec 14, 2024
by
B Robster
8.1k
points
Chemistry
high-school
1
answer
1
vote
191k
views
What is the theoretical yield in grams of ammonia if 59.8 g of nitrogen are allowed to react with 5.2 g of hydrogen? N₂ + 3H₂ ---> 2NH₃
Equalium
asked
Dec 14, 2024
by
Equalium
8.8k
points
Chemistry
high-school
1
answer
5
votes
87.1k
views
What are the strengths and weaknesses of sodium hypochlorite (bleach)?
Brad Barber
asked
Dec 14, 2024
by
Brad Barber
8.0k
points
Chemistry
high-school
1
answer
0
votes
197k
views
An orbital has the radial wavefunction shown below. What orbital is it?
MartinSGill
asked
Dec 14, 2024
by
MartinSGill
7.9k
points
Chemistry
high-school
1
answer
4
votes
29.9k
views
What is the chemical formula of the ionic compound sodium sulfate? Select the correct answer below: O Na(SO4)2 O Na₂(SO4)2 O Na₂SO4 NaSO Nectoriurt Plutonium Content attribution Curkow
Shane Creedon
asked
Dec 14, 2024
by
Shane Creedon
7.5k
points
Chemistry
college
1
answer
1
vote
124k
views
Calculate the number of grams of CO₂ produced from the combustion of 2.45 mol of C₆H₆. The balanced equation is: C₆H₆(g) + 15O₂(g) -> 6CO₂(g) + 3H₂O(g)
Cescy
asked
Dec 14, 2024
by
Cescy
8.0k
points
Chemistry
high-school
1
answer
0
votes
183k
views
What is the pH of a 0.75 M solution of HCN in water, Ka = 6.17x10^-10? A) 1.5 B) 4.5 C) 7.5 D) 9.5
Barryku
asked
Dec 14, 2024
by
Barryku
8.6k
points
Chemistry
high-school
1
answer
0
votes
9.3k
views
A rigid container holds 0.14 g of hydrogen gas. A) It is at standard temperature and pressure (STP). B) It is in a vacuum. C) It is at a constant temperature. D) It is an ideal gas.
Jan Hernandez
asked
Dec 14, 2024
by
Jan Hernandez
8.6k
points
Chemistry
high-school
1
answer
2
votes
206k
views
What is the value of the characteristic temperature beta for an NTC thermistor that has 5000?
Saku
asked
Dec 14, 2024
by
Saku
8.4k
points
Chemistry
high-school
1
answer
3
votes
114k
views
Which shows two expressions that are equivalent to (-7)(-15)(-5)? A) (-7)(-75) and fly )(525) B) (-1)(525) and (35)(-15) C) (35)(-15) and (115)(-5) D) (-1)(525) and (115)(-5)
Matthew Rathbone
asked
Dec 14, 2024
by
Matthew Rathbone
7.5k
points
Chemistry
high-school
1
answer
0
votes
32.1k
views
What is the condition for water absorption to be greater than 7? 1) Water temperature should be above 7 degrees Celsius 2) Water pH should be above 7 3) Water pressure should be above 7 atm 4) Water concentration
Zeekvfu
asked
Dec 14, 2024
by
Zeekvfu
8.0k
points
Chemistry
high-school
1
answer
1
vote
12.5k
views
How many moles of O₂ would be required to generate 13.0 mol of NO₂ in the reaction below assuming the reaction has only 75.4% yield? 2 NO (g) + O₂ (g) → 2 NO₂ (g)
Martin Carre
asked
Dec 14, 2024
by
Martin Carre
7.4k
points
Chemistry
high-school
1
answer
0
votes
20.0k
views
By adding electrons to an atom its overall charge will... ★ become more negative ★ become more neutral ★ become more positive
Sam Aleksov
asked
Dec 14, 2024
by
Sam Aleksov
8.4k
points
Chemistry
middle-school
2
answers
0
votes
13.3k
views
Determine the number of atoms of each element in the following: 4Al(OH)3
Chris Stephens
asked
Dec 14, 2024
by
Chris Stephens
8.7k
points
Chemistry
high-school
1
answer
3
votes
59.9k
views
What two things happen when an atom's valence shell is not full? A. The atom becomes more stable and less likely to react with other elements. B. The atom becomes highly reactive and forms chemical bonds.
Mechnicov
asked
Dec 14, 2024
by
Mechnicov
7.8k
points
Chemistry
high-school
1
answer
0
votes
127k
views
Semimetals is a term which refers to?
Overshadow
asked
Dec 14, 2024
by
Overshadow
8.6k
points
Chemistry
high-school
1
answer
2
votes
210k
views
Which of these represents the release of chemical energy? A Filling up the gas tank in your car B Placing a pile of wood next to a fireplace C Using the microwave to heat up your food D Burning wood in
Andre Carrera
asked
Dec 14, 2024
by
Andre Carrera
8.5k
points
Chemistry
college
1
answer
1
vote
43.8k
views
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