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
grigory [225]
2 years ago
5

Hydrogen and oxygen react to form water. At an atomic level, how do we know that a chemical reaction has occurred?

Physics
1 answer:
pshichka [43]2 years ago
6 0
The hydrogen and oxygen atoms regroup into a new molecule.

Hope this helps!!
You might be interested in
Define Velocity with an example​
kolbaska11 [484]

Velocity stands for Displacement w.r.t time

\\ \bull\tt\longmapsto Velocity=\dfrac{Displacement}{Time}

Or

\\ \bull\tt\longmapsto v=\dfrac{ds}{dt}

  • It has units m/s.
8 0
2 years ago
Read 2 more answers
If a 10kg block is at rest on a table and a 1200N force is applied in the eastward direction for 10 seconds, what is the acceler
gavmur [86]

Answer:

a = 120 m/s²

Explanation:

We apply Newton's second law in the x direction:

∑Fₓ = m*a Formula (1)

Known data

Where:

∑Fₓ: Algebraic sum of forces in the x direction

F: Force in Newtons (N)

m: mass (kg)

a: acceleration of the block (m/s²)

F = 1200N

m = 10 kg

Problem development

We replace the known data in formula (1)

1200 = 10*a

a = 1200/10

a = 120 m/s²

6 0
3 years ago
Explain which planets have seasons and why some planets have none at all.
Sergeu [11.5K]

Answer:

Some planets have seasons some don't bc of the distance from the sun some of them are too cold or too hot to have seasons

8 0
3 years ago
Which temperature scale has no negative temperatures A. Celsius B. Joule C. Fahrenheit D. Kelvin
Brilliant_brown [7]
The Kelvin scale has no negatives on it.

Zero Kelvin is 'Absolute Zero', and nothing can get colder than that.
6 0
3 years ago
Read 2 more answers
A 10 kg ball is held above a building with a height of 30 m. What is the
Darina [25.2K]

Answer: 2940 J

Explanation: solution attached:

PE= mgh

Substitute the values:

PE= 10kg x 9.8 m/s² x 30 m

= 2940 J

6 0
3 years ago
Other questions:
  • Fish give off the compound ammonia, which has a pH above 7. To which class of compounds does ammonia belong?
    13·1 answer
  • An object has rotational inertia I. The object, initially at rest, begins to rotate with a constant angular acceleration of magn
    8·1 answer
  • How is the average American diet affected by our current food system?"
    6·1 answer
  • A student walks 3
    12·1 answer
  • What mass of water will change its temperature by 20.0 degrees Celsius when 515 J of heat is added to it? the specific heat of w
    10·1 answer
  • A wave with a frequency of 5Hz travels a distance of 40mm in 2 seconds.What is the speed of the wave​
    15·1 answer
  • What are three biotic factors that can affect an organism after death?
    6·2 answers
  • A rubber bullet of mass m is fired from a rifle into a stationary block of 25 m. The bullet remains in the block and both the bu
    8·1 answer
  • 4. What is the coefficient of x in the expression x + 3y + 2?<br> A. 0<br> B. 1<br> C. 2<br> D. 3
    14·2 answers
  • In general, the further planets are from the sun, the cooler they are. what other factor can have a significant influence on a p
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!