Select the correct answer from each drop-down menu.
Complete these descriptions of different kinds of chemical reactions.
A
reaction involves burning. This reaction requires energy to start, but it releases more energy than is required to start it. Oxygen is always a reactant, and the products are usually carbon dioxide and water.
A
reaction occurs when a compound breaks down. This reaction has one reactant and two or more products. Energy, as from a battery, is usually needed to break the compound apart.
A ___
reaction occurs when two substances combine to form one substance. An example of this kind of reaction is rusting, in which iron reacts with oxygen.
A reaction that involves the replacement of atoms is a
reaction. An atom from one reactant replaces an atom in the other reactant. This kind of reaction has two reactants and two products. An example is the neutralization of an acid and an alkali.
Answers: 2
Chemistry, 22.06.2019 09:30, raizagisselle1694
Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?
Answers: 3
Chemistry, 22.06.2019 10:00, sdlesley66
Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's
Answers: 1
Chemistry, 22.06.2019 15:30, sanchez7489
Draw the lewis dot structure for each of the following polyatomic ions
Answers: 1
Select the correct answer from each drop-down menu.
Complete these descriptions of different kinds...
Mathematics, 05.10.2019 07:30
History, 05.10.2019 07:30
Mathematics, 05.10.2019 07:30
Mathematics, 05.10.2019 07:30