Complete the following table for the reactions that occur when the black powder is ignited. Balance the equations by replacing the “?” in front of each substance with a number (or leave it blank if it’s a 1). Then fill in the type of reaction for each compound.

Particle exchange energy though elastic collision , hope this .

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.