They are on the left side of the equation.
Answer:
B
Explanation:
If you remeber a balloon in hot air, it pops. This is because the molecules are moving too fast and need more space to move, thus popping the balloon. If you put a balloon in cold air, then it shrinks, the molecules not moving fast enough and don't need as much space.
Answer : The amount of heat absorbed are, 258485.5 J
Solution :
Formula used :

where,
Q = heat gained = ?
m = mass of water = 650 g
c = specific heat of water =
= final temperature = 
= initial temperature = 
Now put all the given values in the above formula, we get the final temperature of copper.


Therefore, the amount of heat absorbed are, 258485.5 J
The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Hence option (1) is correct.
<h3>What is Synthesis reaction ?</h3>
Synthesis reactions are reactions that occur when two different atoms or molecules interact to form one molecule or compound.
It is also known as combination reaction
In the given reaction Mg and O combines with each other to form one product i.e, MgO. Hence, The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Thus, option (1) is correct.
Learn more about chemical reaction here ;
brainly.com/question/27948961
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The motion or kinetic energy of the particles determine the state of matter