What chemicals are released by burning oil, and how are they harmful?

Liquid nitrogen is very cold. At room tempature it changes into a gas. This is an example of: A) Evaporation B) Sublimation C) Melting D) Boling (Its not answer b)

How many different types of atoms are there in the molecule below? MgCO3

Who is narrating the story Charles by Shirley Jackson

Draw Lewis structures for each of the following moecules. Show resonance structures, if they exist A) O2 B) N2 C) CO D) SO2

Which criteria determine whether a heterogeneous mixture is a colloid or a suspension? a) whether its composition is uniform and transparent b) whether the particles do not settle for an extended period of time c) whether the ratio of components is

Which would not be associated with stable atmospheric conditions afternoon thunder showers is the answer

Which is not a characteristic of a compound? It is a mixture of elements. It has properties that differ from its component elements. It has a fixed proportion of elements.

Can you think of other possible ways scientists can determine what climate was like in the past besides studying ice cores?

Which sub-layer thins out into space, where there is no air

Complete and balance the molecular equation, including phases, for the reaction of aqueous ammonium bromide, nh4br, and aqueous lead (ii) acetate, pb (c2h3o2) 2.