Question

Which part of the atom determines its chemical properties?

A.
electron

B.
nucleus

C.
neutron

D.
proton

Answer 1

I would sa A. Because chemical property is something that occurs when a chemical reaction takes place and in the world of chemistry, we basically have a chemical reaction when there is gain, loss or sharing of electrons.

Answer 2

Which best describes why a physical change differs from a chemical change?

A.
A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance.

B.
A physical change results in a new substance being formed, and a chemical change results in a different state of matter.

C.
A physical change happens spontaneously, and a chemical change is used by scientists to create new substances.

D.
A physical change will result in a different state of matter, whereas a chemical change results in a new substance being formed.

Answer 3

The answer is D. Having chemical reaction explained earlier, it is to point that physical change involves in the change of state of matter of a substance or its physical breaking or separation, where the original products remain as the same substances.