Question

In a chemical reaction, a certain compound changes intoanother compound at a rate proportional to the unchanged amount. ifinitially there is 20 grams of the original compound, and there is16 grams after 1 hour, when will 75 percent of the compound bechange

Answer 1

No it will be a 10% of that balance so take 16 * 10% and then take that answer and divide bye 70%