A balloon is filled with 1200 mL of air at 26°C and a pressure of 1.2 atm what is the pressure if the volume is now 898 mL and the temperature is 18°C

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

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)