Answer:
the newspaper one is a chemical change because the chemicals in the paper have reacted with something and turned a different color. the wax one is a physical change because it is a change in the phase of matter, which is always a physical change (still the same substance chemically)
1,1,2 & single replacement reaction
The driving thrust of the car produced by the engine is the main forward force.
The main opposing forces are air resistance (from the wind) and friction (between the tyres and the road)
Since the air resistance + friction = driving force the car moves at a constant speed.
Answer:
Flourine
Explanation:
Chlorine is a member of the halogen family. Halogens are the elements that make up Group 17 (VIIA) of the periodic table, a chart that shows how elements are related to one another. They include fluorine, bromine, iodine, and astatine.
Answer:
agribusiness system
Explanation:
<em><u>Have </u></em><em><u>a </u></em><em><u>good </u></em><em><u>day</u></em>
<em><u>thank </u></em><em><u>me </u></em><em><u>later</u></em>
<em><u>carryonlearing </u></em>
