Answer:
A. unexpected change in odor
Explanation: Common physical changes include melting, change of size, volume, color, density, and crystal form. Example the classic baking soda and vinegar reaction provides evidence of a chemical change due to the formation of a gas and a temperature change.
Layla it is A. that's the only one in standard form.
1-Na
2-N
3-F
4-C
5-Ti(i guess)
6-Fe
The correct answer is B.LONGITUDINAL WAVES.
Answer:
im sorry for being mean goodbye im get the real answer
Explanation: