Adouble-displacement reaction occurs when the negative ion of me compound replaces the positive ion of the other compound to form two new compounds during a chemical reaction.

a. true
b. false

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table