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
taurus [48]
3 years ago
7

4. The compound iron sulfide can be formed by

Chemistry
2 answers:
seraphim [82]3 years ago
6 0
I think the answer is c
alexgriva [62]3 years ago
5 0

Answer:

When iron sulfide is exposed to oxygen it reacts rapidly, releasing large amounts of heat.

Explanation:

i took this from my notes- so whatever aligns with that. sorry if this didnt help but i think its genuinely c heating

You might be interested in
How many white blood cells does a normal adult with 5 L of blood have?
Mashcka [7]
5 L = 6.0 * 10^10

I believe.
6 0
3 years ago
2. Al + Fe2O3 → Al2O3 + Fe (Need to balance equation)
shtirl [24]
Balanced equation: 2Al+Fe2O3–> Al2O3+2Fe

Using mole calculations you can find that 10g of Al produces 24.3g of Fe under the conditions described
4 0
3 years ago
It is necessary to have a 40% antifreeze solution in the radiator of a certain car. the radiator now has 70 liters of 20% soluti
Akimi4 [234]
The answer is : 17.5 liters drained and replaced by 17.5 liters of 100% solution. 
x = amount drained and replaced
(70-x) = remaining amount of 20% solution
<span>.20(70-x) + 1.00(x) = .40(70)
14 - .2x + 1x = 28
1x - .2x = 28 - 14
</span><span>.8x = 14
</span><span>x = 14/.8
x= 17,5 ( 17.5 liters drained and replaced by 17.5 liters of 100% solution)

</span>
6 0
3 years ago
Read 2 more answers
The azide ion, n−3, is a symmetrical ion, all of whose contributing structures have formal charges. draw three important contrib
stich3 [128]

Explanation:

Contributing structures are the resonating structures which are formed due to the delocalization of electrons in a molecule.

The azide ion that is N^{-}_3, is a symmetrical ion, all of whose contributing structures have formal charges.

Lone pair of central nitrogen atom in azide ion is in conjugation with the neighboring nitrogen atoms.

Contributing structures of azide ion are drawn in the image attached.

5 0
3 years ago
What is the molar mass of just the O in CO2?
Vlad1618 [11]

Answer:

16 g/mol

Explanation:

In CO2, it means we have 1 mole of carbon and 2 moles of oxygen.

However, we want to find the molar mass of just a single mole of oxygen.

Now, from tables of values of elements in electronic configuration, the molar mass of oxygen is usually approximately 16 g/mol.

In essence the molar mass is simply the atomic mass in g/mol

8 0
3 years ago
Other questions:
  • The reaction between aluminium powder and iron(III) oxide is used in the rail industry. a. i) write a word equation and a balanc
    11·1 answer
  • What is the approximate pH of a .06 M solution of CH3COOH given that Ka= 1.78*10-5
    12·1 answer
  • Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals
    12·1 answer
  • Which ion is the only negative ion present in an aqueous solution of an Arrhenius base?
    10·1 answer
  • Plants make their own food. The chemical reaction for this process is shown
    9·1 answer
  • Identifying a trend in temperature change over time
    9·2 answers
  • Which is the solution to 8x=3x+2
    5·2 answers
  • A teacher tells the student to dlaw the same wave with double the frequency, while keeping the amplitude the same. How would the
    5·1 answer
  • What are abiotic factors of the ecosystem​
    15·2 answers
  • Atomic mass unit is calculated with reference to
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!