According to the law of reflection if the angle in incidence us 45 degrees what is the angle of reflection

Which of the following are elements nd which are compounds H2, HCI, Na, Al2O3, H2O

Based on the experimental results, which solvent provided the second best separation of the analyte? a. 0.5% nacl solution b. vinegar c. 0.2% nacl solution d. all solvents had the same degree of separation e. distilled water f. 70% isopropyl alcohol

What are observations that indicate a chemical change has occurred?

Which of the following could be considered a scientific statement? O Brown is an ugly color. O Ants live in colonies. O Ghosts are all around us. O Pizza is the best food on Earth.

A solution of barium nitrate is added to a solution of sodium fluoride

What is buffer solution?

How can you simulate the radioactive half-life of an element?

What are the horizontal rows on the periodic table?

What is 19 hundred thousandths in scientific notation

There state of matter that keeps its shape and volume when it is placed in a container