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
Aleksandr [31]
2 years ago
12

Is air a mixture or pure substance ​

Chemistry
1 answer:
Korvikt [17]2 years ago
6 0

Answer:

pure substance

Explanation:

You might be interested in
Can someone please help me please please!
Lisa [10]
The answers are B,C,D
4 0
3 years ago
The following is a Limiting Reactant problem: Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas i
Fynjy0 [20]

Answer: you would 3Mg+N2g and multiply that by 2.0+8.0

4 0
3 years ago
Read 2 more answers
. The dissolving process is exothermic when the energy
Serhud [2]

Answer:

A

Explanation:

The dissolving process depends on the interaction between solute and solvent (solvation) and the breaking up of the intermolecular bond between solutes. The former is exothermic in nature, while the later is endothermic. Energy is released when solute-solvent particles interact. When this energy exceeds the energy required to break intermolecular bonds between the solute particles, dissolution is exothermic.

8 0
2 years ago
Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l)
Marina CMI [18]

Answer:

Please see the complete formt of the question below

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid.

MnO₂(s) + HCl(aq) → MnCl₂(aq) + H₂O(l) + Cl₂(g)

According to the above reaction, determine the limiting reactant when 5.6 moles of MnO₂ are reacted with 7.5 moles of HCl.

The answer to the above question is

The limiting reactant is the MnO₂

Explanation:

To solve this,  we note that one mole of MnO₂ reacts with one mole of HCl to produce one mole of MnCl₂, one mole of H₂O and one mole of Cl₂

Molar mass of MnO₂ = 86.9368 g/mol

Molar mass of HCl = 36.46 g/mol

From the stoichiometry of the reaction, 5.6 moles of MnO₂ will react with 5.6 moles of HCl to produce 5.6  moles of H₂O and 5.6 moles of Cl₂

However there are 7.5 moles of HCL therefore there will be an extra 7.5-5.6 or 1.9 moles of HCl remaining when the reaction is completed

7 0
3 years ago
True or false, We use the ideal gas law when a gas changes
neonofarm [45]

we use the ideal has law when a bad changes false

7 0
3 years ago
Other questions:
  • What are the reactants and products? Write a reaction equation and label the reactants and products.
    7·2 answers
  • The combining of the nuclei of atoms is known as nuclear _____.
    5·2 answers
  • Compare the chemical a d structural formulas of butane and isobutane
    15·1 answer
  • Which example is a renewable energy source?
    7·2 answers
  • One of the hopes for solving the world's energy problem is
    12·1 answer
  • Which is the solution to 8x=3x+2
    5·2 answers
  • The oxidation number of all the element in free state is 0​
    12·1 answer
  • How did fossil records support the existence of a supercontinent?
    12·2 answers
  • Which of the pollowing is
    14·1 answer
  • In the balanced molecular equation for the neutralization of sodium hydroxide with sulfuric acid, the products are:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!