1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yuri [45]
2 years ago
5

How many moles are in 20 grams of O₂ gas?

Chemistry
1 answer:
Dima020 [189]2 years ago
4 0
20 g O2 x 1 mol O2/32 g O = 0.625 mol O2
You might be interested in
Carbon has an atomic number of 6, but the following orbital notation for carbon is incorrect. Explain the error in terms of the
a_sh-v [17]

Carbon:

1s is filled. 2s is filled. 2p is shown to contain two electrons in one orbital and no electrons in the other two orbitals.

8 0
3 years ago
Provide a method for separating the mixtures of two or three compounds, dissolved in a solvent diethyl ether. In each case one o
lys-0071 [83]

Answer:

The complete aerobic oxidation of glucose is coupled to the synthesis of as many as 36 molecules of ATP

Explanation:

Glycolysis, the initial stage of glucose metabolism, takes place in the cytosol and does not involve molecular O2. It produces a small amount of ATP and the three-carbon compound pyruvate. In aerobic cells, pyruvate formed in glycolysis is transported into the mitochondria, where it is oxidized by O2 to CO2. Via chemiosmotic coupling, the oxidation of pyruvate in the mitochondria generates the bulk of the ATP produced during the conversion of glucose to CO2. The biochemical pathways that oxidize glucose and fatty acids to CO2 and H2O.

5 0
3 years ago
Of Be3+ , Li2+ , and He1+
Mama L [17]

Answer:He 1+

Explanation:

Both Hydrogen atom and helium ion are one electron species. Hence we expect the spectrum of the helium ion to closely resemble that of hydrogen atom also containing one valence electron.

5 0
3 years ago
An ordered list of chemical substances is shown. Chemical Substances 1 CuO 2 O2 3 CO2 4 NO2 5 Fe 6 H2O Which substances in the l
a_sh-v [17]

Answer:

reactants: 2 O2

products: 3 CO2, 4 NO2, 6 H2O

Explanation:

In a combustion, a combustible material, which generally is composed of C, H, O, N, and S, is combusted, that is, react with oxygen after a spark was produced; obtaining fire, heat and subproducts, including ashes and gases.

Oxygen is always one of the reactants of a combustion.

If Nitrogen was present in the combustible, NO2 (or other nitrogen oxides) will be produced.

If Carbon was present in the combustible, CO2 will be produced (also CO can be produced).

If Hydrogen was present in the combustible, H2O will be produced.

7 0
3 years ago
What do food webs begin with as the first source of energy A plants B consumers C the sun D decomposers
atroni [7]

Answer:

C:sun

Explanation:

3 0
3 years ago
Other questions:
  • The density of an object is calculated as Density = . If 100mL of water weighs 100g calculate the density?
    8·1 answer
  • For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l
    11·2 answers
  • PLEASE HELPPP MEEEE
    12·2 answers
  • A 716.4g sample of iron is subjected to a temperature change of -33.47°C while releasing 996.6 joules of heat. What is the speci
    6·1 answer
  • The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?
    13·1 answer
  • Which of the following
    15·2 answers
  • Nguyên tử của nguyên tố X có tổng số hạt 40. Tổng số hạt mang điện nhiều hơn số hạt không mang điện là 12 hạt.
    7·1 answer
  • Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?
    9·1 answer
  • During a reaction, the enthalpy of formation of an intermediate is 34 kJ/mol. During the reaction, 4 moles of the intermediate a
    9·1 answer
  • Kerosene, a common space-heater fuel, is a mixture of hydrocarbons whose "average" formula is C₁₂H₂₆.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!