What is the basic building block of a nucleic acids?

Sweat is a mixture of water, dissolved solids, and chemicals. How does the water become separated from the sweat leaving a person's skin salty? A. It separates naturally. B. It separates due to density. C. It separates by evaporation. D.

Given its position on the periodic table, the element sulfur (S) is classified as a A. metal. B. metalloid. C. nonmetal. D. transition metal.

When 26.62 miles of FeS2 reacts with 5.44 miles of O2 how many miles of SO2 are formed

At 15°C, the value of Kw is 4.5 * 10⁻¹⁵. What is the equilibrium concentration of OH⁻ at this temperature?

What chemical reactions are responsible for damage to old stone buildings

What do the numbers listed for an element on the periodic table represent? The smaller number is the number of protons, and the greater number is the mass. The smaller number is the number of neutrons, and the greater number is the number of protons.

Helium (He), oxygen (O), carbon (C) fluorine (F), and chlorine (Cl) are all nonmetals. Using the periodic table, which pair of nonmetals do you predict has the most similar properties, and why?

Calculate the volume of a 1.25 M solution of HCN made from 31 grams of HCN

How to find the valency of a polyatomic ion?

Which of the following is true in regard to a charged atom? A. The number of protons and the number of electrons within the same atom are unequal. B. When an atom gains an electron, it becomes a cation, which is positively charged. C.