Many sidewalks have areas that are uneven or even completely broken. This is usually caused by A. tree roots wedging underneath
B. lichen living on the surface.
C. oxidation of the cement due to oxygen.
D. contact with other rocks.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?