1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Daniel [21]
3 years ago
11

13. Which statement best describes an element? *

Chemistry
1 answer:
Natasha2012 [34]3 years ago
4 0

Explanation:

Distinguish chemical substances from mixtures

Key Points

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components.

A chemical substance is composed of one type of atom or molecule.

A mixture is composed of different types of atoms or molecules that are not chemically bonded.

A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished.

A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.

Various separation techniques exist in order to separate matter, including include distillation, filtration, evaporation and chromatography. Matter can be in the same phase or in two different phases for this separation to take place.

Terms

substanceA form of matter that has constant chemical composition and characteristic properties. It is composed of one type of atom or molecule.

elementA chemical substance that is made up of a particular kind of atom and cannot be broken down or transformed by a chemical reaction.

mixtureSomething that consists of diverse, non-bonded elements or molecules.

You might be interested in
A real gas behaves least like an ideal gas under the conditions of
guajiro [1.7K]
The correct answer is option 3. A real gas behaves least like an ideal gas under the conditions of high temperature and low pressure. At this temperature and pressure, the molecules are close to each other and collisions or interactions are very likely to happen which is not an ideal gas.
5 0
3 years ago
Identify the products in the reaction HCl+NaOH=NaCl+H2O
valentina_108 [34]

NaCl and H2O.

The products are typically the elements/compounds on the right side of the equation or the right side of the arrow. The left side of the arrow would be the reactants of the equation.

Hope this helps!

5 0
3 years ago
1.what happens in the nucleus of an atom when an alpha particle is emitted?
coldgirl [10]
1) The nucleus of an atom loses 2 protons and 4 neutrons.
2) The nucleus of an atom gains a proton and it's neutrons remain the same.
7 0
3 years ago
Read 2 more answers
Convert 6 grams of carbon atoms into miles
anyanavicka [17]
How many grams Carbon in 1 moles? The answer is 12.0107.
<span>We assume you are converting between </span>grams Carbon<span> and </span>mole.
You can view more details on each measurement unit:
molecular weight of Carbon<span> or </span>moles
<span>The molecular formula for Carbon is </span>C.
<span>The SI base unit for </span>amount of substance<span> is the mole.</span>
1 grams Carbon is equal to 0.0832590939745 mole.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between grams Carbon and mole.
<span>Type in your own numbers in the form to convert the units!

</span>
4 0
3 years ago
A _____ is a classification of an element based on its current status, position, or use in a document.​
lina2011 [118]
Pseudo-class is the answer
5 0
3 years ago
Other questions:
  • Which word describes AH for exothermic reactions?<br> O negative<br> O small<br> positive<br> O zero
    12·1 answer
  • Write a mechanism for the bromination of acetanilide with bromine in acetic acid. Be as complete as possible and include all rel
    6·1 answer
  • a manufacturer claims its cleanser work twice as fast as any other . could testt be performed to support the claim?
    13·1 answer
  • On a microscopic scale, mass can be shown to be conserved as...
    7·1 answer
  • Jack hypothesize that more mold will grow on a slice of bread that is left in the dark that a slice of bread left in the light h
    5·1 answer
  • How did cyanobacteria change life on earth
    12·1 answer
  • What is the pOH of a 0.00037 M solution of barium hydroxide
    12·1 answer
  • Which example is a mixture of a gas dissolved in a liquid?
    7·2 answers
  • How does reducing the use of packaging and other materials conserve resources
    6·1 answer
  • Which statements describe turbidity? Check all that apply. Turbidity is a measure of water clarity. Turbidity may be caused by s
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!