Math, asked by SOURABH1446, 9 days ago

Which of the following are examples of chemical changes?
Barium melts at 725 °C.
Silver tarnishes.
Hydrogen reacts with oxygen to form water.
A sheet of copper is pounded into the shape of a bowl.

Answers

Answered by 1986aruneswar

0

Answer:

barium melts at 725°C

hydrogen reacts with oxygen to form water

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