Which elements have the most similar chemical properties?
a. si, as, and te
b. mg, sr, and ba
c. n2, o2, and f2
d. ca, cs, and cu
explain your answer in this case

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

Which statement best describes what happens when molecular compounds melt

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures