A 78.00 g sample of an unknown compound contains 12.40 g of hydrogen. What is the percent by mass of hydrogen in the compound?

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

True is ur answer : )

Ibelieve it’s 1.95m