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
givi [52]
2 years ago
14

Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction

?
(A) Ir + O₂--> IrO₂
(B) 4 Fe + 3 0₂---> 2 Fe₂O3
(C) I+ 0₂ ---> 10₂
(D) 3 Ir + 0₂ -> 6 Ir₂03
Select one:
O a. A
Ob. B
O C. C
O d. D
Chemistry
1 answer:
Alexus [3.1K]2 years ago
3 0

Answer:

B.  4 Fe + 3 0₂---> 2 Fe₂O3        

Explanation:

(A) Ir + O₂--> IrO₂                                 No:  Ir is iridium

(B) 4 Fe + 3 0₂---> 2 Fe₂O3                Yes:  Fe is iron and O is oxygen,                  and the equation is balanced.

(C) I+ 0₂ ---> 10₂                                  No:  I is iodine

(D) 3 Ir + 0₂ -> 6 Ir₂03                         No:  I is iodine

You might be interested in
A sample of gold has a mass of 100 grams and a volume of 5cm^3, calculate the density by dividing the mass by volume
Dafna11 [192]

Answer:

20cm^2

Explanation:

Here, Density= Mass/ Volume

=100/5

= 20 cm^2

7 0
3 years ago
What are two properties of most nonmetals?(1) high ionization energy and poor electrical conductivity(2) high ionization energy
elixir [45]
The two properties of most non metals are high ionization energy and poor electrical conductivity. The correct option among all the options that are given in the question is option "1". In general it is known that nonmetals are very poor conductors of heat and electricity. The nonmetals that are solid are normally very brittle and has very little or no metallic luster at all. Nonmetals are highly reactive and show variety of chemical properties. It can also be pointed out that the nonmetals gain electrons very easily.



4 0
3 years ago
What is a base?
aliya0001 [1]
The correct answer is A
its not D because a low pH is a acid
its not C because a base releases OH- ions
its not B because it donates and releases OH- ions

hope this helps
5 0
3 years ago
Read 2 more answers
What are the answered to both 1 and 2
baherus [9]
By the lloks ofit you cant see it send a better picture
7 0
4 years ago
Which property can be used to tell gold and pyrite apart?
zubka84 [21]

Answer:

D. Malleability

Explanation:

Gold is made up of the element Au and it is a metal.

Pyrite is iron sulfide and it is a non-metal.

  • They have very similar appearance to such an extent that pyrite is widely called the fool's gold.
  • To distinguish between the two, we simply explore their metallic properties.
  • Gold is malleable. Pyrite is not. It will crumble under pressure.
6 0
3 years ago
Other questions:
  • Which of the following is a difference between plant cells and animal cells? A. In plant cells, DNA is stored in the mitochondri
    8·2 answers
  • A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is t
    5·1 answer
  • What are the physical properties of the element lithium?
    9·1 answer
  • Which group in a periodic table does potassium belong to?
    7·1 answer
  • Pleassseee ill mark brainliest Read the following passage and find the two errors. Then, choose the answer that corrects the err
    6·2 answers
  • Which is true about nuclear decay
    9·1 answer
  • Explain what happens when water reacts with sodium metal. Support your answer with the relevant
    10·1 answer
  • This science so I couldn’t put a thing as science<br>X<br>Y<br>Z
    10·2 answers
  • Why would a line graph be better to show the relationship between predator and prey birds in an ecosystem than a circle graph?
    12·1 answer
  • Which of the following statements is true?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!