The periodic table is organized so chemists can easily see .
A. the color of each element
B. the importance of each element
C. the atomic number and weight of each element
D. the smell and taste of each element

What’s the theoretical yield of solid lead

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.

What is the most common reason for matter changing its state?