Which of the following is an example of a chemical change?
2 answers:
HELLO THERE
THE ANSWER IS
D. A gas when vinegar and baking soda are mixed
EXTRA INFO: An exmaple of phyical change is sawing a piece of wood
BEST REGARDS QUEEN Z
HOPE THIS HELPS
A is wrong because something getting heated does not mean a chemical change.
B is wrong because its physical
C is wrong because its physical
D is correct because there is a new product.
btw the chemical formula for vinegar and baking soda is this I think:
CH3COOH + NaHCO3 ⇒ CH3COONa + CO2 + H2O.
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