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SashulF [63]
3 years ago
5

Is a corroding metal a physical or chemical change?​

Physics
2 answers:
fomenos3 years ago
4 0

Answer:

Coording metal is a physical change.

Ganezh [65]3 years ago
4 0
Chemical change

The substance is undergoing a specific chemical change as when Iron combines with oxygen to form iron oxide which is the chemical name of rust. Or what occurs when metal corrodes
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Which of the following accurately describes how scientists use models?
m_a_m_a [10]

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3 years ago
A 6 ft tall person walks away from a 10 ft lamppost at a constant rate of 5 ft/s. What is the rate (in ft/s) that the tip of the
nalin [4]

Answer:

12.5 ft/s

Explanation:

Height of person = 6 ft

height of lamp post = 10 ft

According to the question,

dx / dt = 5 ft/s

Let the rate of tip of the shadow moves away is dy/dt.

According to the diagram

10 / y = 6 / (y - x)

10 y - 10 x = 6 y

y = 2.5 x

Differentiate both sides with respect to t.

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4 years ago
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arlik [135]

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6 0
3 years ago
Cuales son las diferencias entre el helio y el hidrógeno?
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