Where does nitrogen come from

Balanced equation for the combination of magnesium and oxygen to form magnesium oxide

During which phase change does the arrangement of water molecules become more orderly A.) melting B.) subliming C.) boiling D.) condensing

Which is true with respect to the kinetic energy of a molecule? O A. it is the lowest at low temperatures B. it increases at low temperatures C. it is the same at all temperatures D. it is the lowest at high temperatures

How do you determine the proper number of significant figures of a liquid using a graduated cylinder

How many grams of water in 8.22 grams of cuso4*5h2o?

Which of the following is not true about the importance of the carbon cycle to living things? a. Plants use carbon dioxide to make energy. b. Carbon is the second most abundant molecule in organisms. c.

Fruit flies can either have a brown body or a black body. The allele for a brown body (B) is dominant to the allele for a black body (b). A brown fruit fly was crossed with a black fruit fly as shown below.

A light-year measures the distance a light beam can travel in one year. One light-year is equal to 9 500 000 000 000 kilometers.

The first ionization energy, e, of a potassium atom is 0.696 aj. what is the wavelength of light, in nm, that is just sufficient to ionize a potassium atom? values for constants can be found here.

A gene is a to a chromosome as (A) a pea is to a pod (B) a front to a back (C) a bike is to a car (D) a building is to a window