QUESTION 3 Identify the number that has 3 significant figures.
O A. 100
OB. 12.0
O C. 120
OD. 123.00

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

Nonmetal halogen family atmoic mass 35

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.