Select all of the following that are chemical compounds.

O2

H2O

CO2

N2

A monoprotic acid is dissolved in water to produce a 0.0136 M solution. The pH of the resulting solution is 2.45. What is the Ka of the acid?

Write the balanced chemical equation for the reaction of khp with naoh

Energy enables an object to do work. Work is done when

Dichotomous Keys are used to identify organisms based on their observed characteristics. Dichotomous means ... A. A list of organism names B. A confusing list of questions C. To classify D. Divided into two parts

What is the decay mode of radium-226?

A substance is considered to have a smaller surface area when ... A. it is a fine powder B. it is in large chunks C. you have a small amount of the substance D. you have a large amount of E. the substance

Which is the noble gas notation for chlorine? A-[Ne] 4s2 4p5 B-[Ne] 3s2 3p5 C-[Ne] 3s2 3p3 D-[Ne] 3p2 3p5

Is argon long hand or noble gas

Lithium, beryllium, and boron are elements with atomic number 3, 4, and 5, respectively. Even though they are three of the five simplest elements, why are they rare compared to many heavier elements?

What is the formula equation for: Copper (II) Sulfate Pentahydrate - > Copper (II) Sulfate + Water?