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
ElenaW [278]
3 years ago
10

Asap... define pure substances...​

Chemistry
2 answers:
Zina [86]3 years ago
4 0

Answer:

Pure substances are substances that are made up of only one kind of particles and have a fixed or constant structure.

Examples:

All elements are mostly pure substances. A few of them include gold, copper, oxygen, chlorine, diamond, etc. Compounds such as water, salt or crystals, baking soda amongst others are also grouped as pure substances.

gtnhenbr [62]3 years ago
3 0

A pure substance refers to an element or a compound that has no component of another compound or element. Pure substances are made of only one type of atom or molecule. Hydrogen gas and pure iron are examples of pure substances. Hydrogen consists of hydrogen atoms only while iron consists of only iron atoms. Mixing two pure substances results in a mixture. To separate the two, scientists use a method known as filtration. Mixtures can either be homogeneous or heterogeneous. The measure used to determine how pure a substance may be called purity. Besides hydrogen and iron, other pure substances include gold, diamonds, sugar, and baking soda.

You might be interested in
Does anyone know o I'm correct? If not what's the answer?
igomit [66]
I believe it means idea because a Web is out line to a a more structured idea
6 0
3 years ago
What is basicity in acids?​
timama [110]
Basicity of an acid is the number of hydrogen ions which can be produced by one molecule of an acid
6 0
3 years ago
HELP I NEED THIS ASAP<br>ON THE IMAGE​
Sunny_sXe [5.5K]

Answer:

hope you find it helpful

7 0
2 years ago
Read 2 more answers
The following reaction is at equilibrium in a sealed container.
ale4655 [162]

Answer:

D.Lowering the temperature is the best option.

Explanation:

The value of equilibrium constants aren't changed with change in the pressure or concentrations of reactants and products in equilibrium. The only thing that changes the value of equilibrium constant is a change of temperature.

In the reaction below for example;

A + B <==>C+D

If you have moved the position of the equilibrium to the right (and so increased the amount of C and D), why hasn't the equilibrium constant increased?

Let's assume that the equilibrium constant mustn't change if you decrease the concentration of C - because equilibrium constants are constant at constant temperature. Why does the position of equilibrium move as it does?

If you decrease the concentration or pressure of C, the top of the Kc expression gets smaller. That would change the value of Kc. In order for that not to happen, the concentrations of C and D will have to increase again, and those of A and B must decrease. That happens until a new balance is reached when the value of the equilibrium constant expression reverts to what it was before.

3 0
3 years ago
Which of the following is not a characteristic of a solution?What is the concentration of a solution?
vladimir2022 [97]

Answer: B. it will scatter a beam of light

Explanation: hope it is helpful........

3 0
2 years ago
Other questions:
  • If a solution process is exothermic, how does the energy required for dissolving the solute compare with the energy released?
    5·1 answer
  • What is the concentration of a phosphoric acid solution of a 25.00 mL sample if the acid requires 42.24 mL of 0.135 M NaOH for n
    15·2 answers
  • Boyle's law states that the
    5·1 answer
  • Complete the paragraph to describe the characteristics of silicon tetrachloride molecule (SiH4). the Lewis structure and the tab
    11·1 answer
  • What is an example of an interest leading to a career choice
    9·2 answers
  • Rising magma pushes on the crust above it, which can cause ground
    12·1 answer
  • Which substance can not be broken down by a chemical change?
    8·1 answer
  • Calculate the pH during the titration of 30.00 mL of 0.1000 M HCOOH(aq) with 0.1000 M NaOH(aq) after 29.3 mL of the base have be
    6·1 answer
  • A carpenter uses a saw to cut a wooden board into two different sized pieces. Which of the following physical properties is most
    10·2 answers
  • Fix the formula for KF2<br> Write out the full correct formula?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!