C(g) + O2(g) —> CO(g) What is the percent yield of CO when 30.0 g O2 are used? The actual yield is 30.0 g CO.

the answer is the first option

explanation:

just googled it m8. not that hard

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when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

c, liquids evaporate, creating a gas