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Recent questions in Chemistry
Predict the equilibrium constant for the first reaction shown here given the equilibrium constants for the second and third reactions: CO2(g) + 3H2(g) ⇌ CH3OH(g) + H2O(g), K1=? CO(g) + H2O(g) ⇌ CO2(g)
Wouter Vegter
asked
Dec 15, 2024
by
Wouter Vegter
7.3k
points
Chemistry
high-school
1
answer
4
votes
149k
views
What are orbitals? a. areas within an energy level that are occupied by electrons b. regions of the atom that contain protons
Valeriy Katkov
asked
Dec 15, 2024
by
Valeriy Katkov
8.3k
points
Chemistry
high-school
1
answer
4
votes
87.3k
views
To make a glycerophosholipid fatty acids are esterfied at the:_______
Daniel Goldberg
asked
Dec 15, 2024
by
Daniel Goldberg
8.2k
points
Chemistry
high-school
1
answer
0
votes
51.5k
views
The combustion of liquid ethanol (c2h5oh) produces carbon dioxide and water. after 4.6 ml of ethanol (density = 0.789 g/ml ) was allowed to burn in the presence of 12.5 g of oxygen gas, 3.10 ml of water
Behnam Bagheri
asked
Dec 15, 2024
by
Behnam Bagheri
8.3k
points
Chemistry
high-school
1
answer
4
votes
144k
views
How many valence electrons are in an atom with the electron configuration in example A? a. 2 b. 6 c. 8 d. 10
Banzay
asked
Dec 15, 2024
by
Banzay
7.8k
points
Chemistry
high-school
1
answer
1
vote
8.2k
views
Which of the following observations and equations describe the displacement reactions of halide ions in aqueous solutions? Option 1: When a solution of chlorine (Cl2) is added to a solution of sodium iodide
TrevorKirkby
asked
Dec 15, 2024
by
TrevorKirkby
8.3k
points
Chemistry
high-school
1
answer
4
votes
35.4k
views
How many molecules are in 6 moles of H₂O ?
PEPP
asked
Dec 15, 2024
by
PEPP
8.6k
points
Chemistry
high-school
1
answer
5
votes
70.5k
views
During protein production, a strand of RNA is formed inside the .
Eivamu
asked
Dec 15, 2024
by
Eivamu
8.7k
points
Chemistry
college
1
answer
5
votes
100k
views
Question One: Research and write a description of how hot OR cold packs use chemistry to produce a change in temperature.
JKirchartz
asked
Dec 15, 2024
by
JKirchartz
8.3k
points
Chemistry
high-school
1
answer
5
votes
213k
views
Saline solutions (NaCl in water) used to deliver intravenous drugs are 0.89%(w/v). What mass of NaCl would be needed to prepare 450 mL of such a solution? A) 4 x 102 g B) 0.89 g C) 4.0 g D) 5.1 g
Pons
asked
Dec 15, 2024
by
Pons
7.5k
points
Chemistry
high-school
1
answer
0
votes
77.0k
views
Calculate the enthalpy of the reaction: 2NO(g) + O₂(g) --> 2NO₂(g) given the following reactions and enthalpies of formation: 1/2 N₂(g) + O₂(g) --> NO₂(g), delta H*A = 33.2 kJ 1/2 N₂(g) + 1/2O₂(g) -->
Insoo
asked
Dec 15, 2024
by
Insoo
8.4k
points
Chemistry
high-school
1
answer
3
votes
191k
views
Iron(III) oxide reacts with carbon to give iron and carbon monoxide, as shown below. Fe₂O3 (s) + C (s) → Fe (s) + CO (g) How many grams of C (s) are required to react with 27.28 g of Fe₂O3? Round your
Raikumar Khangembam
asked
Dec 15, 2024
by
Raikumar Khangembam
9.1k
points
Chemistry
college
1
answer
3
votes
32.9k
views
What type of bond will K and Al make? 1) Ionic bond 2) Covalent bond 3) Metallic bond 4) Hydrogen bond
Talloaktrees
asked
Dec 15, 2024
by
Talloaktrees
9.3k
points
Chemistry
high-school
1
answer
5
votes
3.7k
views
If we increase the distance traveled over the same period of time, this will
Aubyn
asked
Dec 15, 2024
by
Aubyn
8.1k
points
Chemistry
high-school
1
answer
4
votes
151k
views
Iron (Fe) has the valence electronic configuration of 4s² 3d⁶. Which of the following is the correct position of Fe element? a) 4s² b) 3d⁶
RobertW
asked
Dec 15, 2024
by
RobertW
7.2k
points
Chemistry
high-school
1
answer
3
votes
123k
views
The prefix "senti-" means "party". Based on your knowledge of the properties of elements, which kind of element is most likely used to make semiconductors? A. Liquids B. Metals C. Metalloids D. Nonmetals
Moses Davidowitz
asked
Dec 15, 2024
by
Moses Davidowitz
8.4k
points
Chemistry
high-school
1
answer
2
votes
214k
views
How many grams of urea are produced from 16.5 g of glycine?
Raymundus
asked
Dec 15, 2024
by
Raymundus
7.3k
points
Chemistry
high-school
1
answer
0
votes
20.3k
views
The combustion of propane may be described by the chemical equation CH₃CH₂CH₃(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g). How many grams of O₂(g) are needed to completely burn 20.3 g C₂H₆(g)? Option a: 77.4 g O²
Georg Ledermann
asked
Dec 15, 2024
by
Georg Ledermann
8.3k
points
Chemistry
high-school
1
answer
4
votes
56.7k
views
Separate equation for electrophilic addition reaction with H₂SO₄
Ingweland
asked
Dec 15, 2024
by
Ingweland
8.7k
points
Chemistry
high-school
1
answer
5
votes
4.7k
views
What are the products from the following single-replacement reaction? Zn(s) + CuSO4(aq) → ______________ A. Cu and ZnSO3 B. CuO and ZnSO3 C. Cu and ZnSO4 D. CuO and ZnSO4 E. no reaction
NickGnd
asked
Dec 15, 2024
by
NickGnd
7.7k
points
Chemistry
high-school
2
answers
5
votes
70.5k
views
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