Answer:
In a molecule, atoms are bonded together by single, double, or triple bonds. An atom has a nucleus surrounded by electrons.
Explanation:
Answer:
Every option is correct except option C.
Option A is the most accurate statement of the law
Explanation:
C is incorrect because momentum of the SYSTEM is conserved and not necessarily that of the individual objects in the System.
For option B, momentum is a vector quantity but it does not describe the principal of conservation of momentum. Option D is also correct but does not state anything about the conservation of momentum.
Are silent run on power and have to be electricly charged
Answer:
No
Explanation:
When a substance changes its state , there will not be any change in the mass of substance . For example , if we change 100 grams of water (liquid) to ice(solid) , the mass of ice will be same i.e., 100 grams . This shows there is no change in the mass even if a substance changes its state.
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