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
lana [24]
2 years ago
14

Is salt pure or impure

Chemistry
1 answer:
Lady bird [3.3K]2 years ago
4 0

Answer:

pure

Explanation:

because there no additional substance

You might be interested in
Which phrases describe a model in science? Check all that apply.​
AfilCa [17]
I would say the first 3
4 0
3 years ago
In the equation below
yulyashka [42]

Answer:

6.25 moles of N₂ is produced, and 18.8 moles of Cu and H₂O is produced.

Explanation:

We are given the chemical equation:

\displaystyle 2\text{NH$_3$}_\text{(g)} + 3\text{CuO}_\text{(s)} \longrightarrow \text{N$_2$}_\text{(g)}  + 3\text{Cu}_\text{(s)}+3\text{H$_2$O}_\text{(g)}

And we want to determine the amount of products produced when 12.5 moles of NH₃ is reacted with excess CuO.

Compute using stoichiometry. From the equation, we can see the following stoichiometric ratios:

  • The ratio between NH₃ and N₂ is 2:1. (i.e. One mole of N₂ is produced from every two moles of NH₃.)
  • The ratio between NH₃ and Cu is 2:3.
  • The ratio between NH₃ and H₂O is 2:3. (i.e. Three moles of H₂O or Cu is produced frome every two moles of NH₃.)

Dimensional Analysis:

  • The amount of N₂ produced:

\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{1\text{ mol N$_2$}}{2\text{ mol NH$_3$}} = 6.25\text{ mol N$_2$}

  • The amount of Cu produced:

\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{3\text{ mol Cu}}{2\text{ mol NH$_3$}} = 18.8\text{ mol Cu}

  • And the amount of H₂O produced:

\displaystyle 12.5\text{ mol NH$_3$} \cdot \frac{3\text{ mol H$_2$O}}{2\text{ mol NH$_3$}} = 18.8\text{ mol H$_2$O}

In conclusion, 6.25 moles of N₂ is produced, and 18.8 moles of Cu and H₂O is produced.

8 0
2 years ago
Please help me with this
yaroslaw [1]

Answer:

3s orbital

Explanation:

3s is the outermost orbital of magnesium and it loses electron from it, it doesnt even have 4f, 5p or 3d orbitals.

3 0
2 years ago
Read 2 more answers
Can someone please help me please?
vekshin1

Answer:

The sum of the molar masses of each isotope of the element.

7 0
3 years ago
Read 2 more answers
How are heat, temperature, and thermal energy related?​
Dmitriy789 [7]

Answer:

Heat, temperature, and thermal energy are related because they all work with each other.

Explanation:

First of all, everything start's off with temperature. It starts off low. But when heat is added to it, it rises and the temperature goes up. This causes thermal energy to the objects touching it. The hotter it is the faster the particles move and the more kinetic energy they have.  

6 0
2 years ago
Other questions:
  • What is the number of oxygen atoms in the ring portion of the haworth structure of glucose?
    9·1 answer
  • If 8.753 g of the heptahydrate produces 8.192 g of the hexahydrate, how many grams of anhydrous nickel(ii) sulfate could be obta
    6·1 answer
  • How many tiny frogs sitting next to each other would measure the same length as a Blue Whale?
    7·2 answers
  • During a titration, a known concentration of _____ is added to a _____ of an unknown concentration g
    9·1 answer
  • Q1.What is the mass of 5 moles Of 1.Mg
    8·2 answers
  • You have 0.672 L of 4.78 M aqueous AlCl3 solution in a glass. If you gently heat the solution until only 0.380 L is left, what i
    15·1 answer
  • Do you think more chemical reactions that occur in the human body are endothermic or exothermic? Justify your answer.
    7·1 answer
  • Which element has 5 energy levels and 2 valence electrons?
    11·1 answer
  • Please answer
    10·1 answer
  • Molecular formula of sulphur trioxide by criss cross method ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!