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
anyanavicka [17]
2 years ago
8

In your own words, describe a pure substance. How can elements as well as compounds be considered pure substances.

Chemistry
1 answer:
Marizza181 [45]2 years ago
8 0

Answer:

Pure compounds include elements and compounds where a combination of two or more pure substances is a mixture. Only one type of atom comes in the form of a pure element. Multiple atoms consist of a molecule and different atoms consist of a compound. These are all pure substances and individually.

You might be interested in
I NEED HELP ASAP! WILL MARK AS BRAINLIEST
LiRa [457]

Answer:

Sry i am unable to see the attached picture but i hope this helps

Explanation:

There are a couple of ways to prepare a buffer solution of a specific pH. In the first method, prepare a solution with an acid and its conjugate base by dissolving the acid form of the buffer in about 60% of the volume of water required to obtain the final solution volume

5 0
3 years ago
Read 2 more answers
2. How many moles are in 2.8 Liters of CO2 gas?
andrew-mc [135]

Answer:

0.125 moles

Explanation:

2.8 litres is equivalent to 2.8dm³

At STP,

1 mole = 22.4 dm³

x mole = 2.8 dm³

Cross multiply

22.4x = 2.8

Divide both sides by 22.4

x = 2.8/22.4

x = 0.125

4 0
2 years ago
Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to the reactio
umka21 [38]

Answer : The value of K_p at this temperature is 66.7

Explanation : Given,

Pressure of PCl_3 at equilibrium = 0.348 atm

Pressure of Cl_2 at equilibrium = 0.441 atm

Pressure of PCl_5 at equilibrium = 10.24 atm

The balanced equilibrium reaction is,

PCl_3(g)+Cl_2(g)\rightleftharpoons PCl_5(g)

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{PCl_5})}{(p_{PCl_3})(p_{Cl_2})}

Now put all the values in this expression, we get :

K_p=\frac{(10.24)}{(0.348)(0.441)}

K_p=66.7

Therefore, the value of K_p at this temperature is 66.7

4 0
2 years ago
1. What determines the reactivity of an atom?
Veronika [31]
The number of electrons in the outermost shell of an atom determines<span> its </span>reactivity<span>.</span><span>
</span>
5 0
3 years ago
Which group of elements gain electrons?
Sliva [168]

Answer:

Non-metals tend to gain electrons

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What property of water allows it to stick to a dry surface, such as a wooden countertop?
    7·1 answer
  • Consider three 10-g samples of water: one as ice, one as liquid, and one as vapor. how do the volumes of these three samples com
    11·1 answer
  • What is the role if DNA in determining an organism's traits
    8·1 answer
  • Using the equations 2 Sr(s) + O₂ (g) → 2 SrO (s) ∆H° = -1184 kJ/mol SrO (s) + CO₂ (g) → SrCO₃ (s) ∆H° = -234 kJ/mol CO₂ (g) → C(
    12·1 answer
  • Which statement best describes science
    11·1 answer
  • Neither dry soil nor pure water conducts electricity but wet soil will conduct electricity. Explain why this happens?
    6·2 answers
  • What is the charge on an atom with an equal number of protons and electrons?
    13·2 answers
  • Eglin land animals have evolved to produce eggs with the tough shells to ensure that
    5·1 answer
  • According to the following reaction, how many grams of sulfur are formed when 37.4 g of water are formed?
    12·1 answer
  • What are some<br> double replacement reactions you see every day
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!