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
Pepsi [2]
3 years ago
11

Lonic or Covalent? Fe2O3

Chemistry
1 answer:
yan [13]3 years ago
8 0
Fe2o3 this is covalent
You might be interested in
1.
Leya [2.2K]

Answer:

V₂ = 530.5 mL

Explanation:

Given data:

Initial temperature = 20.0°C

Final temperature = 40.0 °C

Final volume = 585 mL

Initial volume = ?

Solution:

Initial temperature = 20.0°C (20+273 = 293 K)

Final temperature = 40.0 °C (40+273 = 323 K)

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₁ = V₂T₁ /T₂  

V₂ = 585 mL × 293 K / 323 K

V₂ = 171405 mL.K / 323 K

V₂ = 530.5 mL

6 0
3 years ago
Manganese(IV) oxide is reduced to manganese(II) oxide by hydrogen gas. Include all phases in answer
liq [111]
<span><span>Mn<span>O<span>2<span>(s)</span></span></span>+<span>H<span>2<span>(g)</span></span></span>→Mn<span>O<span>(s)</span></span>+<span>H2</span><span>O<span>(g)</span></span></span></span>
4 0
3 years ago
HELP ME QUICK
Sophie [7]
Quick answer: Exothermic reactions mean that heat has escaped the system. The answer is A. Heat is released.
3 0
3 years ago
Read 2 more answers
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
zloy xaker [14]

Answer:

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the <u>phosphate</u> group attached to the 5' carbon atom of the sugar portion of a nucleotide and the <u>hydroxyl</u> group attached to the <u>3'</u> carbon atom

Explanation:

Nucleic acids are polymers formed by a phosphate group, a sugar (ribose in RNA and deoxyribose in DNA) and a nitrogenous base. In the chain, the phosphate groups are linked to the 5'-carbon and 3'-carbon of the ribose (or deoxyribose) and the nitrogenous base is linked to the 2-carbon. Based on this structure, the nucleic acid chain orientation is identified as the 5'-end (the free phosphate group linked to 5'-carbon of the sugar) and the 3'-end (the free hydroxyl group in the sugar in 3' position).

3 0
3 years ago
Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis
shusha [124]
<span>The correct answer is A, the ligt-dependent reactions. These reactions are responsible for the production of glucose molecules, by the utilization of carbon dioxide, and water along with the sunlight. Glucose is then broken down during resiration process, for the production of ATP in mitochondria.</span><span />
5 0
3 years ago
Read 2 more answers
Other questions:
  • A 2.20 mol sample of NO 2 ( g ) is added to a 3.50 L vessel and heated to 500 K. N 2 O 4 ( g ) − ⇀ ↽ − 2 NO 2 ( g ) K c = 0.513
    14·1 answer
  • For ethanol, propanol, and n-butanol the boiling points, surface tensions, and viscosities all increase. what is the reason for
    15·1 answer
  • Use the drop-down menu to complete the sentence.
    6·2 answers
  • Which of the following statements are true? I. Models are always wrong unless they are proved by a theory. II. Elements, such as
    8·1 answer
  • A non-metal usually forms 2 covalent bonds in its compounds.How many electrons will it take in its valence shell?
    11·1 answer
  • 1. A sample of argon at a pressure of 785 mm Hg is transferred from a 125 ml dask to a 15 ml
    11·1 answer
  • Hi help me pls i don't know this ​
    12·1 answer
  • A candle is placed between a concave mirror and its focal point.
    11·2 answers
  • Help meh fast PLZ PLZ
    15·1 answer
  • You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!