I think it means the reaction doesn't have any intermediate phases - the order doesn't change, and it moves at the same rate, it doesn't speed up or slow down at any time
Three examples of arthropods are, a crab, a centipede, and a spider. I know a crab is a arthropod because crabs have an external skeleton. Like armor, it protects the arthropods body. When arthropods are born the exoskeleton is soft but hardens quickly and it can be shed as the creature grows. Arthropods are invertebrates; which means that they do not have a backbone. I also know a centipede is a arthropod because they can have many jointed legs or limbs. Spiders have 8 legs, millipedes can have... Hundreds! I know a spiders are a arthropod because they have a segmented body. This means that they will have a body made up of more than one part. Spiders have two segments and flies have three segments.
You can answer this question by only searching the element in the periodic table.
The atomic number of iodine, I, is 53. It is placed in the column 17 (this is the Group) and row 5 (this is the Period).
The conclusion is that the iodine is located in Period 5, Group 17, and is classified as a nonmetal.
False. Most countries (not USA) use the metric system. England being one of them