What does the first law of thermodynamics say? A. Energy cannot be stored in any form.
B. Energy cannot be created or destroyed.
C. Energy cannot move within a system.
D. Energy cannot enter or leave a system,

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

What’s the percent by mass of carbon in c10h14n2

Compare and contrast physical changes with chemical changes.