An unknown solution has a pH of 8

If a color change occurs when two solutions are mixed has a chemical reaction likely occurred?

Rewrite each equation below with the delta H value included with either the reactants or the products and identify the reaction as endothermic or exothermic. A) H2 (g) + O2 (g) - > H2O (l); DeltaH^0 = - 285.

You do not have a separate guest bedroom. Which of the following order of choices is correctly listed from best to worst?

Which statement best explains the octet rule? A) atoms gain, lose, or share electrons at achieve a full valence shell B) compounds always consist of 8 shell C) molecules always of 8 atoms D) all atoms require of 8 electrons to from bonds

Rust is made of a two different kinds of atoms. Some of the atoms have 26 protons, while the others have only 8 protons. Hint: You may use a periodic table to answer this question. Which are the two different elements that make up rust?

How are real gases different from ideal gases?

Which one doesnt belong in the list below? A. a meter B. one liter C. One centimeter D. one kilometer

Which elements did curies discover

When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom of oxygen. If 1.98 grams of rubidium is exposed to air, what will be the mass of the product in grams

Fission reactions can get of of control without what taking place?