which of the following always has different types of atoms?

Question

option a)compound
option b)mixture
if the answer is compound then give an example of mixture having one kind of atom(vice versa).

Answer 1

a) compound

A compound by definition has different types of atoms, because a compound is a chemical substance formed from two or more chemical elements.

An example of a mixture having one kind of atom would be a slurry of diamond dust and graphite, because diamond and graphite are allotropes of carbon, meaning that all of the atoms would be carbon.

Answer 2

A compound always has 2 or more different types o atoms bound chemically. CO2, H2O, NaCl, they have a definite ratio of atoms and can not be separated physically. Compounds have formulas, mixtures do not. A diatomic element such as O2 or N2 is not considered a compound.

A mixture can have any number of elements or compounds in it but not in a particular ratio or bound together. You could use a physical means to separate. salt water, sugar water, air, a mixture of ice water may be considered a mixture of the same types of atoms. H2O in solid and liquid form.

An element is the category of matter with only one type of atom. O2, N2, H2, silver, gold,

So the best answer is both a and b

Answer 3

The answer is a).

About a): A compound is a pure substance made up of two or more different elements bonded together (like water, H2O). Since each element is made up of a different type of atom, all compounds have more than one type of atom. (Examples: H2O, CO2, NH3, C6H12O6) The molecule N2 is not a compound since it does not contain more than one element. It would be considered an element.

About b): A mixture, by definition, is two or more pure substances physically combined (like salt and water to make salt water, or oxygen and nitrogen gas to make air). In a simple mixture containing only two substances, you could have 1) two different compounds, 2) two different elements, or 3) a compound and an element. All three would result in more than one type of atom.

The exception is if you have a mixture of allotropes For example, a mixture of oxygen gas (O2) and oxzone gas (O3) would be a mixture since both are pure substances and they are combined physically. However there is only one type of atom present. Therefore, choice a) will ALWAYS have different types of atoms.

Answer 4

The answer is a) compound ,as mixture may be composed of different compounds and hence so many types of atoms ,molecules and other matter is present. A compound always has two or more different types of atoms.

Answer 5

THEY BOTH HAVE DIFFERENT TYPES OF ATOMS IN THEM!

But ... a compound will have them combine in a fixed proportion. For example the compound H2O is formed only when Hydrogen combines with water in a proportion of 2:1

But a mixture like say lemonade ... a mixture of water, lemon juice and sugar can me made according to personal taste, doesnt have a standard ratio in which to mix the ingredients.

BUT BOTH ... H2O AND LEMONADE ARE NOTHING BUT ATOMS.


Mixtures Vs. Compounds

The law of constant composition states that the ratio by mass of the elements in a chemical compound is always the same, regardless of the source of the compound. The law of constant composition can be used to distinguish between compounds and mixtures of elements: Compounds have a constant composition; mixtures do not. Water is always 88.8% O and 11.2% H by weight regardless of its source. Brass is an example of a mixture of two elements: copper and zinc. It can contain as little as 10%, or as much as 45%, zinc.

Another difference between compounds and mixtures of elements is the ease with which the elements can be separated. Mixtures, such as the atmosphere, contain two or more substances that are relatively easy to separate. The individual components of a mixture can be physically separated from each other.

Chemical compounds are very different from mixtures: The elements in a chemical compound can only be separated by destroying the compound. Some of the differences between chemical compounds and mixtures of elements are illustrated by the following example using raisin bran and "Crispix.".

Raisin bran has the following characteristic properties of a mixture.

The cereal does not have a constant composition; the ratio of raisins to bran flakes changes from sample to sample.
It is easy to physically separate the two "elements," to pick out the raisins, for example, and eat them separately.
Crispix has some of the characteristic properties of a compound.

The ratio of rice flakes to corn flakes is constant; it is 1:1 in every sample.
There is no way to separate the "elements" without breaking the bonds that hold them together.

Answer 6

Compounds are made up of different types of atoms chemically combined.

Mixtures can be combinations of atoms of the same elements, but in different physical states. Think of a diamond covered in soot. Carbon atoms, but in two different physical states.

Answer 7

as you see in a compund the electrons are being shared between two elements so it becomes ONE kind of atom, this is called a unit atom, but in a misture it depends on waht misture you are having like a solution of sugar and water have different types of atoms as the elements do not have any bond .