<u>"</u><u><em>False" because the pure substances are made up of single elements or compounds.</em></u><u> </u>Hope this helps! Thank you for posting your question at here on Brainly. Have a great day! -Charlie
Answer:
228,585 gram
Explanation:
M h2so4 = 2 + 32 + 16*4 = 98 g/mole
C% o2 in h2so4 = (64 / 98) * 100 = 65,31%
m o2 = 350 * 65,31% = 228,585 gram
Done :))