Which example illustrates a chemical change?

2 answers:

8 0

<span>Chemical changes are those that yield to a different substances or compounds. This happens when compounds change the bonding ot the atoms which meanns that the composition of the substance has changed. Rust, fire, combustion, food cooking are examples of chemical changes. Freezing and vaporizations are not chemical changes, they are examples of physical changes.</span>

IRINA_888 [86]2 years ago

5 0

Answer:

Burning wood

Explanation: The wood is still wood, even if it's burnt. But it has a different identity.

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timurjin [86]

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2 years ago

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slavikrds [6]

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2 years ago

A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. Assume

dalvyx [7]

Explanation:

It is given that,

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Initial speed of car 2, $u_1=20j\ m/s$ (north)

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$m_1u_1+m_2u_2=(m_1+m_2)V$