The ability of an apple to change color when exposed to air is chemical or physical
Answers
The ability of an apple to change color when exposed to air represents an example of a chemical change.
What is a Chemical change?
A chemical change may be defined as a type of change of materials into another form or new materials with different properties, and one or more than one new substance is formed spontaneously.
The change of color of the apple into brown when it is exposed to air is a chemical change. When you observed the color of an apple is to be brown, you are producing a chemical change. This involves the rearrangement of atoms in one or more substances resulting in a change in their chemical properties or composition.
Therefore, the ability of an apple to change color when exposed to air represents an example of a chemical change.
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Related Questions
IN a physics lab, a student discovers that the magnitude of the magnetic field at a certain distance from a long wire is 4.0μT. If the wire carries a current of 5.0 A, what is the distance of the magnetic field from the wire?
Which of the following solutes dissolved in 1000g of water would provide the fewest number of particles?A) 1000 g of glucose (C6H12O6) B) 1000 g of sodium chloride (NaCl) C) 1000 g of calcium carbonate (CaCO3) D) 1000 g of potassium sulfate (K2SO4)
The death of a star occurs when its _____ stops.nuclear fusionnebular cloudsstellar gravityrotation
9.) The fastest land animal, the cheetah, can accelerate from 0 m/s to 33 m/s in 3 seconds. What is the cheetah's acceleration?
B. The magnet attracts paper, which pulls the ball. C. The paper exerts a force on the ball, Which pulls the ball towards the magnet.
D. The size of the ball attracts to the ball towards the magnet.
Answers
A steel ball, a magnet, and a piece of paper are used in an activity by a pupil. The ball is under the influence of the magnet. Therefore, choice A is right.
What is a magnet?
When electric charges move, a phenomenon known as magnetism is produced. These tiny movements can occasionally be found inside a material known as magnets. Magnets and the magnetic fields created by moving electric charges can attract or repel other magnets, which can also change how other charged particles move.
Because they can support a magnetic field that lasts forever, some materials, like iron, are categorized as permanent magnets. These are the magnets that are typically encountered in day-to-day life. Other materials like iron, cobalt, and nickel can be briefly given a magnetic field when placed inside a stronger, bigger magnetic field, but they will eventually lose their magnetic qualities.
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Answer:b
Explanation:
Verify the identity. Show your work.
cot θ ∙ sec θ = csc θ
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cot θ = cos θ / sin θ
sec θ = 1 / cos θ
csc θ = 1 / sin θ
Using these identities:
cot θ ∙ sec θ = (cos θ / sin θ ) ( 1 / cos θ)
We can cancel out cos θ, leaving us with
cot θ ∙ sec θ = 1 / sin θ
cot θ ∙ sec θ = = csc θ
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Answer:
(a) 300 W
(b)0.90 J
Explanation:
(a) The electric power for any circuit element is given as
Here I is current passing in the circuit and V is the voltage.
Given I = 12 A and V =25 V.
Substitute the given values, we get
P = 300 W.
Thus, the power defibrillator deliver to the body is 300 W.
(b) To calculate the electric energy use the relation between electric energy, power and time as
Given t = 3 ms.
Substitute the values, we get
E = 0.90 J.
Thus, the energy transferred is 0.90 J.
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Answer:100 g of ca
Explanation:
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Answer:
Refraction is the change in direction of waves that occurs when waves travel from one medium to another. Refraction is always accompanied by a wavelength and speed change. Diffraction is the bending of waves around obstacles and openings.
Explanation:
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