Which of the following statement is correct?
Melting is a chemical change because the melted wax can again be obtained as solid wax upon cooling.
Burning of wax is a chemical change, as once the wax has been burnt, it cannot be obtained back in its original form.
Cutting of trees is a chemical change as it gives new products with different composition.
Physical change:-
Chemical change:-
Statement I: Melting is a physical change as the melted wax can again be obtained as solid wax upon cooling Statement II: Burning of wax is a chemical change, as once the wax has been burnt, it cannot be obtained back in its original form.
Which of the following option is correct?
Which of the given statements is correct? Statement 1: Melting of wax is a physical change as the molten wax can be solidified on cooling.
Statement 2: Burning of wax is a chemical change, as once the wax has been burnt, it cannot be brought back to its original form.
Statement 1: Melting is a physical change because melting doesn't create a new substance. It only changes the state of the wax from solid to liquid. Statement 2: Burning is a chemical change because once wax is burnt, the wax gets converted to new substances.
Which of these statements is correct?