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
Brums [2.3K]
2 years ago
8

One sentence describing the difference between pure substances and mixtures.

Chemistry
2 answers:
Alja [10]2 years ago
6 0

Answer:

A pure substance is made up of only one ingredient or combination. A mixture is made up of two or maybe more separate components that are not chemically linked.

Explanation:

aev [14]2 years ago
5 0
A pure substance consists of only one element or one compound. A mixture consists of two or more different substances that are not chemically joined together.
You might be interested in
Please help me, I really don't want to fail but I don't know how to do this
Brrunno [24]

Answer:

A)

<u>4, 7, 4, 6</u>

B)

<u>12 moles</u>

Explanation:

NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)

__↑______↑

8.00 mol | 14.00 mol

________________

NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)

You can turn this into a system of variables which are solvable.

To do this, create variables for the coefficients of each compound in the reaction respectively.

a(NH_{3}(g)) + b(O_{2}(g)) → \\c(NO_{2}) + d(H_{2}O(g))

Because to be balanced, the count of atoms in each element of the compound correspond to the coefficient of the variable in that compound so that the count of the left (reactant) side is set equal to the right (product) side.

a corresponds to the coefficient of the first compound, b corresponds to the coefficient of the second compound, c corresponds to the coefficient of the third compound, and d corresponds to the coefficient of the fourth compound.

(Reactant = Product)

Reactant: 1a [N] Product: 1c.

Reactant: 3a [H] Product: 2d.

Reactant: 2b [O] Product: 2c + 1d.

Thus the system is:

1a = 1c

3a = 2d

2b = 2c + 1d.

Then just use the substitution methods to solve.

3 0
2 years ago
Please answer my questions. I really need them soon. I will post the links for other questions in the comments.
Assoli18 [71]

Explanation:

option option B is the correct answer of given statement helium-4(He)=2

6 0
2 years ago
What is the difference between stating "The electron is located at a particular point in space" and "There is a high probability
Y_Kistochka [10]

Answer:

D

Explanation:

3 0
3 years ago
How do scientists predict the polarity of molecules, the distribution of non-polar and polar molecules?
EastWind [94]

Answer:

Explanation:

Polar molecules interact with other molecules of similar polarity to form solutions. Non-polar molecules do not interact the same way.

8 0
2 years ago
Read 2 more answers
What is a major problem with CFCs?
Pepsi [2]
The answer is C as it slowly destroys the ozone layer
8 0
2 years ago
Read 2 more answers
Other questions:
  • Why are water molecules polar? select one:
    6·1 answer
  • A crew of six astronauts from the United States and other countries live on the _and conduct space research hoping to have posit
    8·2 answers
  • Planting more vegetation will result in __________ erosion. decreased increased the same can't tell
    7·1 answer
  • The density of gold is 19.3 g/cm? What volume would 109 g of gold have?<br> ОА. .<br> 56.48 cm3
    9·1 answer
  • The SI base unit for mass is the gram. TRUE FALSE ​
    9·2 answers
  • A tissue sample at 275 K is submerged in 2 kg of liquid nitrogen at 70 K for cryopreservation. The final temperature of the nitr
    10·1 answer
  • If the enthalpy value for a reaction is negative, what does that indicate about the reaction?
    15·2 answers
  • Menciona 3 elementos que puedan formar alótropos distintos al carbono
    11·1 answer
  • Calculate the number of moles in 125g of Copper (II) Hydroxide. URGENT!
    11·1 answer
  • Copper is a product of the reaction that occurs when dry ammonia is passed over a sample of heated copper(II) oxide. The equatio
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!