answer last one “How many moles of hydrogen are consumed to produce 100 g ammonia” ? explanation and answer required then u get brain list

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

If soap hits the floor, is the soap dirty or the floor

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as