at standard temperature and pressure, a 0.50 mol sample of h2 gas and a separate 1.0 mol sample of o2 gas have the same

All of the following are examples of service-learning opportunities except: a. donating time to senior citizen war veterans and writing a report about the experience for your u.s. history class. b. getting a part-time job at a habitat restoration center. c. reading to second-grade students as part of your assigned reading time for your english class. d. planting trees in your community and then discussing global warming in your science class.

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

The occupational safety and health administration requires employers to provide fall protection to construction workers who are working on surfaces with unprotected sides and edges feet or greater above the lower level.