Aprediction of what you believe to be true is called a
- theory
- scientific law
- hypothesis
- conclusion

An engineering team designs a new rocket that is faster and lighter than any other model being produced. however, the materials end up being so expensive that no company can afford to buy them. which step of the engineering process should have addressed this problem? a. know the background. b. evaluate the results. c. identify a need. d. do the work.

How can you use chemical equations to predict the products of the reaction you can carry out?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?