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Recent questions in Chemistry
For hydrocarbons, the larger the number of carbon chains, the higher the boiling point. Is this statement: a) True b) False
Ranju R
asked
Dec 24, 2024
by
Ranju R
7.2k
points
Chemistry
high-school
1
answer
4
votes
85.6k
views
A mixture is a material composed of two or more elements or compounds that are physically mixed together but not chemically combined. If table salt is placed in a glass of warm water, sodium and chloride
Hellfish
asked
Dec 24, 2024
by
Hellfish
8.7k
points
Chemistry
high-school
1
answer
4
votes
101k
views
Which pairs of substances will dissolve in each other? 1) I. CH₃OH and II. C₆H₆ 2) II. C₆H₆ and III. CH₃CH₃ 3) I. CH₃OH and III. CH₃CH₃ 4) All of the above
Maerch
asked
Dec 24, 2024
by
Maerch
7.9k
points
Chemistry
high-school
1
answer
2
votes
88.9k
views
A chemist must dilute 73.6mL of 87.6mM aqueous potassium dichromate(K2Cr2O7)solution until the concentration falls to 54.0 mM . She'll do this by adding distilled water to the solution until it reaches
Iztoksson
asked
Dec 24, 2024
by
Iztoksson
8.7k
points
Chemistry
college
1
answer
2
votes
3.3k
views
Carbon dioxide decomposes into CO and O₂ at elevated temperatures. What is the equilibrium partial pressure of oxygen in a sample at 1000 °C for which the initial pressure of CO₂ was 1.15 atm? a) 0.575
Sai Kumar Reddy
asked
Dec 24, 2024
by
Sai Kumar Reddy
8.5k
points
Chemistry
high-school
1
answer
4
votes
46.3k
views
What is the route that electricity takes to reach your homes?
Mohammad Athar
asked
Dec 24, 2024
by
Mohammad Athar
8.4k
points
Chemistry
high-school
1
answer
5
votes
172k
views
Carbon tetrachloride (CCl₄) is ✔ covalent. What properties would you expect for CCl₄? Select all that apply. A. It is likely a gas or liquid at room temperature. B. It is likely soluble in water. C. It
Ignabe
asked
Dec 24, 2024
by
Ignabe
8.1k
points
Chemistry
high-school
1
answer
2
votes
116k
views
How many compositional (chemical) layers does Earth have? A) 2 layers B) 3 layers C) 4 layers D) 5 layers
Ayub Malik
asked
Dec 24, 2024
by
Ayub Malik
8.1k
points
Chemistry
high-school
1
answer
5
votes
104k
views
Water can be added to magnesium nitride to create ammonia gas and magnesium oxide. If 2.0 moles of magnesium nitride is added to 4.0 moles of water, how many liters of ammonia gas should be produced if
ShankarSangoli
asked
Dec 24, 2024
by
ShankarSangoli
7.6k
points
Chemistry
high-school
1
answer
5
votes
76.2k
views
Consider the combustion of ethylene, C2H4 + 3 O2(g) 2 H2O(g) . If the concentration of C2H4 is decreasing at the rate of 0.036 M/s, what are the rates of change in the concentrations of O2 and H2O?
Tyler Brinks
asked
Dec 24, 2024
by
Tyler Brinks
7.2k
points
Chemistry
college
1
answer
4
votes
4.7k
views
Which substances exhibit only London (dispersion) forces? CI2,HCl,H2o,He?
Oskare
asked
Dec 24, 2024
by
Oskare
6.9k
points
Chemistry
college
1
answer
1
vote
134k
views
What causes atoms to react with each other? OO A. A chemical equation OB. A state change OC. A physical change OD. A chemical reaction
Dumi
asked
Dec 24, 2024
by
Dumi
8.0k
points
Chemistry
college
1
answer
1
vote
225k
views
Base joined at N_____ to C___ of sugar via _________ bond
JoxieMedina
asked
Dec 23, 2024
by
JoxieMedina
8.1k
points
Chemistry
high-school
1
answer
5
votes
164k
views
Calculate Reactions 1, 2 and 3 using standard entropy change. Need this asap.
ZeroTek
asked
Dec 23, 2024
by
ZeroTek
8.1k
points
Chemistry
college
1
answer
2
votes
39.0k
views
Fifty milliliters of a liquid boils at 74.8°C from the beginning of the distillation to the end. Since there is no wide boiling range, can we assume that the liquid is pure?
Jaskiratjd
asked
Dec 23, 2024
by
Jaskiratjd
8.5k
points
Chemistry
high-school
1
answer
2
votes
222k
views
Butanedione, a component of butter and body odor, has a cheesy smell. Elemental analysis of butanedione gave the mass percent composition: C: 55.80% H: 7.03% O: 37.17% The molar mass of butanedione is
VivaceVivo
asked
Dec 23, 2024
by
VivaceVivo
8.3k
points
Chemistry
college
1
answer
2
votes
93.9k
views
I am curious about the fundamentals of metal hydrides and how adsorption/desorption works in non-hydrogen systems. My understanding is that the atom ratio M/Hx of the metal hydride is a function of the
Oll
asked
Dec 23, 2024
by
Oll
8.6k
points
Chemistry
high-school
1
answer
0
votes
45.8k
views
What is the empirical forμla of a compound composed of 25.3 g of potassium (K) and 5.18 g of oxygen (O)? Insert subscripts as needed. a) K2O b) KO c) K2O_2 d) KO_2
Ron Klein
asked
Dec 23, 2024
by
Ron Klein
8.1k
points
Chemistry
high-school
1
answer
1
vote
29.0k
views
Balancing Practice MgCl2 + Na2O →NaCl +MgO a) MgCl2 + Na2O → NaCl + MgO b) MgCl2 + Na2O → NaCl + MgO2 c) MgCl2 + Na2O → Na2Cl + MgO d) MgCl2 + Na2O → NaCl2 + MgO
Eshwar
asked
Dec 23, 2024
by
Eshwar
7.4k
points
Chemistry
high-school
1
answer
5
votes
120k
views
Conjugation causes a shift to a lower/higher wavenumber?
Endoro
asked
Dec 23, 2024
by
Endoro
8.3k
points
Chemistry
high-school
1
answer
4
votes
202k
views
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