Answer:
Explanation:
The period law state that when elements are listed in order of their atomic numbers, the elements fall into recurring groups, so that there is a recurrence of similar properties at regular intervals.
Na and K in the periodic table fall into the same group, this is because they both have one electrons in their outermost shell.
Na 11 -1s2 2s2 2p6 3s1
K 19 - 1s2 2s2 2p6 3s2 3p6 4s1
They share similar chemical and physical properties. Na and K are very reactive metals, they can loose/donate their outermost electron to non metals in other to attain stable octet state.
The form ionic compound when they react with non metals.
Answer:
C) a halohydrin
Explanation:
In organic chemistry, a halohydrin is a compound whereby halogen and hydroxyl functional groups are bonded to adjacent carbon atoms in the molecule. Halohydrins are formed from alkenes such as cyclohexene in this case.
NBS is a very suitable alternative to Br2 in the synthesis of a halohydrin. Recall that the reactive intermediate when bromine reacts with an alkene is the brominium ion which is a three atom ring ion. If excess water is used as the solvent, then the water attacks the brominium ion to yield the product halohaydrin with trans a trans stereochemistry.
You can tell it is more dense because it sinks
if it floats it's less dense
Answer:
Just look at which one it doesn't show.
Explanation:
Characteristics of compounds
1. Components in a compound are present in a definite proportion.
2. It has a homogeneous composition.
3. Particles in a compound are of one kind.
4. A compound is made up of one or more atoms of the same or different elements.
5. In a compound the elements are present in a fixed ratio by mass.
6. A compound can be divided into simpler substances by a chemical process.
7. The physical and chemical properties of a compound are completely different from those of its constituents.
