Does this chemical equation demonstrate conservation of matter? (Yes or No) How do you know this? Li2CO3 + CO2 + H2O → 2LiHCO3

Consider this initial-rate data at a certain temperature for the reaction described by

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

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.