CHEMISTRY MIDDLE SCHOOL

A sound waves frequency is 4 hz and its wavelength is 8 meters. what is the waves speed

Answers

Answer 1
Answer:

Answer:

32 m/s

Explanation:

Frequency is the number of waves that pass a particular point in 1 second

Wavelength is the distance between 2 crests or 2 troughs

Speed = frequency x wavelength

Substituting the values

Speed = 4 Hz x 8 m

Speed = 32 m/s

Waves speed is 32 m/s

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What are 3 physical properties of aluminum foil

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Solid, ductile (can conduct heat), malleable (can be shaped differently).

What distance will a truck travel in 3 hours at an average speed of 50 miles per hour?

Answers

150 miles. 50×3=150. It's that easy.

how does the processes of photosynthesis and cellular respiration allow for the flow of energy in organisms

Answers

Photosynthesis and cellular respiration go hand and hand. Remember the two equations are just a reverse of the opposite equation. 

Cellular Respiration-
C₆H₁₂O₆ + 6O₂ (Yeilds or Makes) 6CO₂ + 6H₂O + ATP (Or Energy)

Photosynthesis-
6CO₂ + 6H₂O + ATP (Or Sunlight) (Yeilds or Makes) C₆H₁₂O₆ + 6O₂  

When a plant goes through photosynthesis it produces oxygen as a waste product, which you should know is what animals use to breathe, well when animals use oxygen in the process, they also make a waste product which happens to be Carbon Dioxide, which a plant uses to make glucose during photosynthesis, so if we didin't have one we wouldn't have the other.

Change 32L of carbon dioxide into moles of carbon dioxide

Answers

32L —> 32000g —> 727.116 Moles (rounded)

What is the volume, to the nearest whole cubic inch, of a cylinder with a height of 10 inches and a radius of 8 inches? Use Pi = 3.14 and round your answer to the whole number.cubic inches

Answers

Answer:

v=2010 inches^3

Explanation:

The volume of a cylinder can be found using:

v=\pi r^2h

We know the height is 10, the radius is 8, and we can substitute 3.14 in for pi

v=3.14(8^2)(10)

Solve the exponent first

v=3.14(64)(10)

v=3.14(640)

v=2009.6

To the nearest whole number:

v=2010 inches^3

What are the possible orbitals for n = 3?

Answers

For n = 3, the possible orbitals are:

  • 3s orbital
  • 3p orbitals
  • 3d orbitals

What are the possible orbitals

3s orbital: The 3s orbital is spherical in shape and can hold up to 2 electrons.

3p orbitals: The 3p orbitals have a dum/bb/ell shape and consist of three individual orbitals: 3px, 3p/y, and 3pz. Each of these orbitals can hold up to 2 electrons, so the total capacity of the 3p sublevel is 6 electrons.

3d orbitals: The 3d orbitals have complex shapes and consist of five individual orbitals: 3dxy, 3dxz, 3dyz, 3dx2-y2, and 3dz2. Each of these orbitals can also hold up to 2 electrons, resulting in a total capacity of 10 electrons for the 3d sublevel.

In summary, for n = 3, the possible orbitals are 3s, 3p (3px, 3py, 3pz), and 3d (3dxy, 3dxz, 3dyz, 3dx2-y2, 3dz2).

Learn more about orbitals  at

brainly.com/question/20319149

#SPJ6

Answer:The n = 3 shell, for example, contains three subshells: the 3s, 3p, and 3d orbitals. There is only one orbital in the n = 1 shell because there is only one way in which a sphere can be oriented in space.

Explanation:hope this helps:D
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