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
zalisa [80]
3 years ago
10

If oxygen and steel wool are combined is it a physical change or chemical change?

Physics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

Chemical change

Explanation:

If both combined it will be a <em>chemical</em><em> </em><em>change</em>

<em>Physical</em><em> </em><em>change</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>reversed</em><em> </em><em>easily</em><em>;</em><em> </em><em>chemical</em><em> </em><em>change</em><em> </em><em>cannot</em><em> </em><em>be</em><em> </em><em>changed</em><em> </em><em>back</em><em> </em><em>to</em><em> </em><em>previous</em><em> </em><em>state</em>

Anon25 [30]3 years ago
4 0

Answer:

I think it would be a chemical change.

Explanation:

Because a physical would be like crushing it or something along that line.

You might be interested in
If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 195-pound man?
Mamont248 [21]

Answer:

1.241 kg

Explanation:

The mass of the man in kg is 195 pound * (1/2.2) kg/pound = 195/2.2 = 88.64 kg

If 1.4% of the mass of a human body is calcium, then the mass of calcium inside the 88.64 kg man is

1.4% * 88.64 = 88.64*1.4/100 = 1.241 kg

So there's 1.241 kg of calcium inside a 195-pound man

8 0
3 years ago
Read 2 more answers
Which of the following describe wind patterns created by a low-pressure front, where two air masses are interacting? Choose one
viva [34]

Answer:

I think its  might Be number B

Explanation:

tell me if im rong

6 0
2 years ago
What is the minimum speed necessary to make it safely??
spayn [35]

Answer:

10-15mph

Explanation:

5 0
3 years ago
Meg walks 5 blocks south and then turns around and walks 8 blocks back to the north. The distance that she walks is 13 blocks. W
Drupady [299]

Three blocks north of where she started.

4 0
3 years ago
Suppose you have a 115 kg wooden crate resting on a wood floor, with coefficient of static friction 0.500 between these wood sur
alexdok [17]

Answer:

maximum force (in N) can you exert horizontally on the crate without moving it = 564.075 N

Explanation:

Given data:

mass m= 115 kg

coefficient of friction μ =0.5

according to newton law of motion the net force acted on body is given by

F_{net}=ma=F_{max}- F_{f}

here the body is in rest ,

F_{net}=0\\\Rightarrow F_{max}=F_{f}\\\text{frriction force}  F_{f} = \mu\times N\\

N= it is the normal reaction force

N= mg = 115×9.81

therefore,

F_{f} = 0.5\times115\times9.81 = 564.075 N = F_{max}

4 0
3 years ago
Other questions:
  • A uniform Rectangular Parallelepiped of mass m and edges a, b, and c is rotating with the constant angular velocity ω around an
    6·1 answer
  • Which statement best compares momentum and kinetic energy? If you double the velocity of an object, its kinetic energy doubles.
    9·2 answers
  • The Bohr model was determined ultimately to be flawed. Knowing that "opposites attract (and 'likes' repel)," can you think of an
    12·1 answer
  • Please help on this one
    13·1 answer
  • Which types of electromagnetic waves have frequencies that are higher than those of ultraviolet light but lower than those of ga
    14·2 answers
  • Find h , the maximum height attained by the projectile. express the maximum height in terms of v 0 , θ , and g .
    11·1 answer
  • in a mass spectrometer ionized molecules are accelerated from rest through a potential difference V into a uniform magnetic fiel
    12·1 answer
  • PROJECT: METRIC RECIPE The movement to have metric measurements as the only unit of measurement in the United States is gaining
    9·1 answer
  • A wave travels at 1,500 m/s with a frequency of 5 hertz. What is its wavelength?
    11·1 answer
  • A block with initial velocity of 3 m/s slides 9 m across a rough horizontal surface before coming to rest. What is the coefficie
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!