<h3>
Question #1:</h3>
False.
Melting is a type of chemical change.
<h3>Question #2:</h3>
True.
If the substance's atoms change in any way, it is a chemical change.
<h3>Question #3:</h3>
True.
If a substance is broken or torn, it's still the same substance. (Take tearing paper, for example)
<h3>Question #4:</h3>
False.
Take boiling water for example, when you boil water, it is still water, right?
<h3>Question #5:</h3>
False.
<em><u>Every</u></em> chemical or physical change in matter includes change in energy. <u><em>Not most.</em></u>
<h3>
Question #6</h3>
True.
Hydrogen peroxide (H2O2), has turned into water (H2O) and oxygen (O). The substance has change chemically, therefore it is an chemical change.
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I hoped this helps! If you have any questions, feel free to ask! ^^
Equation:
C2H2 + O2 -> CO2 + H2O
Balanced using given coefficients: 2, 3, 4, 5
*Remember: these numbers can be used more than once (as stated in the question)
2 C2H2 + 5 O2 -> 4 CO2 + 2 H2O
I feel u r working with the chapter Mechanism of liquid
but I could understand ur question....
Answer:
Increasing the temperature
Increasing particle size
Explanation:
Increasing the temperature allows for particles and molecules to move faster (because there is an increase in energy) and allows for more collisions.
∴ Increasing the temperature would be an answer.
Increasing the particle size allows for more surface area and a greater chance for particles to collide with each other.
∴ Increasing particle size would be an answer.
Topic: AP Chemistry
Unit: Kinetics
<span>electronegativity difference and the 3D arrangement of atoms in the compund.</span>