2 is the correct answer because with 2O2 molecules it balances the chemical equation.
Hope that helps
Answer:
1 and 4
Explanation:
in both pictures the temperature is cooling down
One kilogram is equal to one thousand grams. Further, one gram is equal to 1000 mg. The conversion is as shown below,
(6.285 x 10³ mg) x (1 g / 1000 mg) x (1 kg / 1000 g)
The numerical value of the operation above is 0.006285 kg.
Answer:
Please check with the attachment posted.
Please do confirm the answer.