The gain of electrons is called

a. oxidation.

c. electrochemistry.

b. reduction.

d. half-reaction.

The element ___ is always present in a combustion reaction

Which of the following is an advantage of the sole proprietorship form of ownership? A. Limited liability B. Split responsibility C. Control over the business D. Unlimited liability

A substance that speeds up the rate of a chemical reaction is called a. a catalyst b. a substrate. c. an enzyme. d. Both A and C

Arrange the following solids in order of decreasing solubility, CaF2, K sp=4.0 * 10-11; Ag2CO3, K sp=8.1 * 10-12; Ba3 (PO4) 2, K sp=6.0 * 10-39; and Ag3 (PO4) 2, K sp=1.0 * 10-31.

Taking the example of an element of atomic number 16, explain how the electronic configuration of the atom of an element relates to its position in the modern periodic table and how valency of an element is calculated on the basis of its atomic

How do metallic bonds differ from covalent and ionic bonds

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

How many grams of H₂ are produced with the reaction of 36 grams of water? 2 Na + 2 H20 - > 2 NaOH + h2

Which statement is the best description of a chemical bond? A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. c. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in a molecule.

The energy of an electron varies depending upon which energy level that electron occupies. True or False.