substance
The weakness of the ground element is water and grass. Those I know are correct. But I'm not absolutley sure, but ground also may be its own weakness.
You may either play a lot of games to earn them or you may use a hack to earn them. (The hack is not advised because if you use it you will be banned)
It depends on what you are referring to. It may be either the login name to the game (which would be your characters name) or the login name for their website.
It' s either Drew a supporting character from the Advance series or Ash Ketchum, a boy that use to travel with her.
There are no proof that she likes either of them but i think she loves Drew,because when Brianna asked May if she loved Drew she blushed. no, may blushed because she didnt thought of that. but i think she likes nobody.
substance
Iron is a chemical element; sand may be a compound or a mixture.
in its pure form, iron is an element, but that may not be what you are referring to.... if you have iron oxide (rust), this is a compound of iron and oxygen.
No. If it is written Ar, it is the element Argon. If not, it may be the acronym for a longer-named compound, but it cannot be a chemical formula.
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
S- sulfur
Because they are, respectively, an element and a compound. There may be a deeper question here, but I'm not seeing it. Perhaps you're trying to ask what the difference is between an element and a compound?
A solid may be an element (iron), a compound (iron oxide), a mixture (iron ore).
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
Assuming it is pure silver, it would be an element.
Nitrogen is an element . Nitrogen gas, however, is often called nitrogen and is a molecule consisting of two nitrogen atoms bound together. Thus it may be considered to be a compound.
A protein can not be an element, because every protein must contain at least four elements: carbon, hydrogen, oxygen, and nitrogen. A pure protein is a compound, but it may be mixed either homogeneously or heterogeneously with other molecules that are so chemically similar that they are difficult to separate.