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
slava [35]
2 years ago
5

How is steal wool and oxygen making iron oxide a chemical reaction? Why?

Chemistry
1 answer:
ikadub [295]2 years ago
3 0

Answer:

When iron wool combusts, it reacts with oxygen from the air to form iron oxide. Iron oxide is a solid, so the oxygen atoms from the air add to the mass on the balance. The balance tips as the iron wool reacts with the oxygen to form solid iron oxide. from.

Explanation:

You might be interested in
The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is -5084.1 kj . f the change in e
TEA [102]

<u>Given:</u>

Change in internal energy = ΔU = -5084.1 kJ

Change in enthalpy = ΔH = -5074.3 kJ

<u>To determine:</u>

The work done, W

<u>Explanation:</u>

Based on the first law of thermodynamics,

ΔH = ΔU + PΔV

the work done by a gas is given as:

W = -PΔV

Therefore:

ΔH = ΔU - W

W = ΔU-ΔH = -5084.1 -(-5074.3) = -9.8 kJ

Ans: Work done is -9.8 kJ


6 0
3 years ago
If a chemical has a pH of 3, how could you alter its pH value to be more basic?
Andreyy89

Answer; If a chemical has a pH of 3, how could you change its pH value to be more basic? Adding water to a chemical will dilute the acid, thus lowering the pH value to more basic.

6 0
3 years ago
How many particles are in 12.47 grams of NaCl?
jeka94
If we are talking about moles then the answer to that is 0.22
5 0
3 years ago
Write the names of stages in the life cycle of butterfly
stepladder [879]

Answer:

There are four stages in the metamorphosis of butterflies and moths: egg, larva, pupa, and adult.

Hope this helps :)

3 0
3 years ago
The element born, b, has an atomic mass of 10.81 amu according to the periodic table. however, no single atom of boron has amass
klio [65]
The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. The dimensionless standard atomic weight instead refers to the AVERAGE of atomic mass values of a typical naturally-occurring mixture of isotopes for a sample of an element.
You can count it by yourself using formula

m = ({first isotopic distribution%}× {first atomic.mass})+ ({second isotopic distribution%}× {second atomic.mass}) / {100}
5 0
3 years ago
Other questions:
  • Here is the whole question
    6·1 answer
  • How can you tell isotopes apart?
    10·2 answers
  • If a solid has a density of 4.0 g/cm^3, what volume of the solid has a mass<br> of 24 g? Show work.
    8·1 answer
  • What influences the movement of ions and molecules?
    13·2 answers
  • How do you solve this
    14·1 answer
  • 8 3/5- 3 4/5 what is the answer to this question ​
    6·1 answer
  • What is the change found in melting and recasting iron
    5·1 answer
  • A 283 g silver figure of a polar bear is dropped into the 217 g aluminum cup of a well insulated calorimeter Containing 263 g of
    5·1 answer
  • A transverse wave moves a medium at an abtuse angle to the wave , true or false ?​
    14·1 answer
  • Given the balanced equation representing a reaction:
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!