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Recent questions in Chemistry
I would like a basic rundown, and explanation for the problem. 2 FeCl2 + Cl2 → 2 FeCl3 If 1.8384 moles of FeCl3 are produced, how many moles of Cl2 were reacted?
Gerbrand
asked
Dec 15, 2024
by
Gerbrand
8.3k
points
Chemistry
college
1
answer
2
votes
131k
views
Which statement accurately defines the mass number of an element? a. The number of electrons in the element. b. The number of protons in the element. c. The number of protons plus neutrons in the element.
Nbrustein
asked
Dec 15, 2024
by
Nbrustein
8.0k
points
Chemistry
high-school
1
answer
2
votes
70.6k
views
Depolarisation is: (a) A specific period in which K+ ions diffuse out of the neuron due to a change in membrane permeability (b) The interior of the cell becoming less negative due to the influx of Na+
Miomir Dancevic
asked
Dec 15, 2024
by
Miomir Dancevic
8.2k
points
Chemistry
high-school
1
answer
5
votes
88.0k
views
A 110.0-g sample of a gray-colored, unknown, pure metal was heated to 92.0°C and put into a coffee-cup calorimeter containing 75.0 g of water at 21.0°C. When the heated metal was put into the water, the
Glyuck
asked
Dec 15, 2024
by
Glyuck
7.6k
points
Chemistry
high-school
1
answer
5
votes
33.5k
views
Green beans cooked for hot holding on and off a must reach a minimum internal temperature of what? a. 120°F b. 130°F c. 140°F d. 160°F
Msal
asked
Dec 15, 2024
by
Msal
7.4k
points
Chemistry
high-school
1
answer
2
votes
135k
views
Which 2 elements would be out of order in the periodic table if they were arranged by atomic mass instead of atomic number?
Amacrobert
asked
Dec 15, 2024
by
Amacrobert
8.2k
points
Chemistry
high-school
1
answer
0
votes
45.3k
views
Why can't the enthalpy of formation of calcium carbonate be determined directly?
Tyasia
asked
Dec 15, 2024
by
Tyasia
8.3k
points
Chemistry
college
1
answer
4
votes
71.8k
views
Determine the equilibrium constant Kc and the reaction quotient Qc for a reversible reaction.
Johnny Cox
asked
Dec 15, 2024
by
Johnny Cox
7.5k
points
Chemistry
high-school
1
answer
0
votes
162k
views
Any particles that are dissolved in solution, will _____ through any filter.
Cdlf
asked
Dec 15, 2024
by
Cdlf
8.0k
points
Chemistry
high-school
1
answer
5
votes
142k
views
The rate law of the reaction 2H_2(g)+2NO(g)→N_2(g)+2H_2O(g) is rate=k[H_2[NO] ^2 Which of the following mechanisms cannot be possible? a. 2NO⇌N 2O 2(fast equilibrium) N_2 O_2 +H_2 →N _2O+H _2O (slow) N_2
Kostia Medvid
asked
Dec 15, 2024
by
Kostia Medvid
8.1k
points
Chemistry
high-school
1
answer
2
votes
17.6k
views
9.60g of gas x occupies the same volume as 0.30g of hydrogen under standard conditions. Calculate the molar mass of X
Sohammondal
asked
Dec 15, 2024
by
Sohammondal
8.0k
points
Chemistry
high-school
1
answer
0
votes
205k
views
Given that Kw for water is 2.4x10⁻¹⁴ M² at 37 degree C, compute the pH of a neutral aqueous solution at 37 degree C, which is the normal human body temperature.
Saltern
asked
Dec 15, 2024
by
Saltern
7.8k
points
Chemistry
high-school
1
answer
3
votes
161k
views
Shapes of simple polyatomic molecules
Tom Halladay
asked
Dec 15, 2024
by
Tom Halladay
7.7k
points
Chemistry
college
1
answer
5
votes
108k
views
Plese hurrrrrrrrrrry Use the terrestrial ecosystem food web to answer this question. Terrestrial Ecosystem Food Web Leopards eat baboons and impalas in a terrestrial ecosystem. What prediction can be made
Alex Varju
asked
Dec 14, 2024
by
Alex Varju
8.5k
points
Chemistry
high-school
1
answer
1
vote
140k
views
How many grams of H, would be formed if 34 grams of carbon reacted with an unlimited amount of H₂O? The reaction is: C + H₂O → CO + H₂ The atomic mass of C is 12.01 g/mole. The atomic mass of H2 is 2.016
Daniel Schmitz
asked
Dec 14, 2024
by
Daniel Schmitz
8.3k
points
Chemistry
high-school
1
answer
2
votes
65.0k
views
Thinking about the definition of a weak acid, why do we see this difference?
Slykat
asked
Dec 14, 2024
by
Slykat
7.6k
points
Chemistry
high-school
1
answer
1
vote
67.9k
views
For a reaction dependent on protons, how much will the reaction shift for every unit change in pH? a) -0.05916 V b) +0.05916 V c) -1.05916 V d) +1.05916 V
Kound
asked
Dec 14, 2024
by
Kound
6.8k
points
Chemistry
high-school
1
answer
5
votes
35.0k
views
What is the formula for Ca+2 and Co3-2 ? O CaCO3 O Ca2c03 O CaCO3)2
Hatem
asked
Dec 14, 2024
by
Hatem
8.1k
points
Chemistry
high-school
1
answer
5
votes
97.2k
views
Solve for the mass of a 3.5 × 10⁵ cg sample in units of kilograms. a. 0.035 kg b. 0.0035 kg c. 0.35 kg d. 3.5 kg
Mohammad
asked
Dec 14, 2024
by
Mohammad
8.4k
points
Chemistry
high-school
1
answer
0
votes
219k
views
Specify which hybrid orbitals are used by carbon atoms in the following species: (a) CO sp sp² sp³ sp³d sp³d² (b) CO₂ sp sp² sp³ sp³d sp³d² (c) CN− sp sp² sp³ sp³d s³d²
Chris Summers
asked
Dec 14, 2024
by
Chris Summers
7.8k
points
Chemistry
high-school
1
answer
4
votes
14.1k
views
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