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marta [7]
2 years ago
11

Which of the following represents a physical change?

Chemistry
1 answer:
vivado [14]2 years ago
8 0
A. phase changing.  Physical change is any change in matter that involves the substance going from one physical state to another, and phase change is most commonly used to describe transitions between solid, liquid and gaseous states of matter.
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When Magnesium loses electrons to Oxygen and they form an Ionic bond.
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Redox

Explanation:

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Why do teapots have highly polished surface
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Good conductors of electricity and heat, form cations by loss of electrons,

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A 1.50-kilogram ball is attached to the end of a 0.520-meter string and swung in a circle. The velocity of the ball is 9.78 m/s.
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Answer:

F centripetal force (tension) = 275.9  N

Explanation:

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Mass = 1.50 kg

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F centripetal force (tension) =  m.v² / R

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F centripetal force (tension) = 143.5 kg. m²/s² / 0.520 m

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7 0
2 years ago
Question 5 of 10
djyliett [7]

A. A diagram showing the effects of temperature and pressure on  phase

Explanation:

A phase diagram is a diagram that shows the effects of temperature and pressure on phase.

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  • The phase graph represents physical state changes.
  • A phase change is made up of pressure on the y-axis and temperature on the x - axis.

Learn more:

Phase change brainly.com/question/1875234

#learnwithBrainly

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2 years ago
In which orbitals would the valence electrons for selenium (Se) be placed?
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3 years ago
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