If you change the subscripts it would change the reactants or products and then you would be solving a different formula, you would change what the chemical is
Answer:
I don't understand anything but thanks for the points
please say in English. I mean say properly the question.......
thank you
Answer:
fe3o4+4h2 - 3fe + 4h2o
therefore coefficient is 4
It’s B. The kinetic molecular theory states that matter is made up of constantly moving particles.
<u>Answer:</u> The correct answer is Option D.
<u>Explanation:</u>
We are given that car travels with a speed of 80 km/hr and we need to convert it into hm/s.
For that we use the conversions:
1 kilometer = 10 hectometer
And, 1 hour = 3600 seconds
To convert the quantity into hm/s, we multiply the numerator which is 80 by 10 to convert the whole quantity into hm/hr and now, to convert the result into hm/s finally, we divide the result by 3600.

Hence, the correct answer is option D.