What is a physical property but also a characteristic property

Why is it dark at night?

Which type of perspective makes objects look similar to how they look in real life (select the best answer) linear perspective fractional perspective isometric perspective

Altocumulus and altostratus clouds usually bring which of the following types of weather?

Lewis structures cannot

Suppose an alkane had 30 hydrogen atoms. How many carbon atoms would it have? a. 15 atoms c. 14 atoms b. 62 atoms d. 28 atoms

Which of the following is a physical change? A. magnetzing an iron rod B. roasting marshmallows on a campfire c. milk souring D. an antacid neutralizing stomach acid

Which of the following objects would require the use of a large-scale model? An atom A car engine A frog's heart The Mississippi River

What is the empirical formula for C5H1102? * A. C10H2202 B. C5H110 C. C5H1102 D. C2H110

How is the energy level of an atom's valence electrons related to the period in the periodic table?

In the presence of a platinum catalyst, ammonia, NH3, burns in oxygen, O2, to give nitric oxide, NO, and water vapor.