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
Komok [63]
3 years ago
14

A teacher makes the following statement.

Chemistry
2 answers:
ale4655 [162]3 years ago
8 0

Answer:

distillation of a mixture

Explanation:

Nat2105 [25]3 years ago
3 0

Answer:

A.) Distillation of mixture.

Explanation:

edge 2021

You might be interested in
A 5.5 sample of battery acid contains 490.0g of sulfuric acid H2SO4
prohojiy [21]

n =  \frac{m}{mw}  \\ n =  \frac{490}{98}  \\ n = 5 \: mol
5 0
4 years ago
Give five examples of exothermic reactions in everyday life
DedPeter [7]

Answer:

Ice Cubes. When water freezes into ice cubes, the energy is released in the form of heat. ...

Formation Of Snow In Clouds. Sponsored. ...

Hot Packs. ...

Rusting Of Iron. ...

Burning Of Candles. ...

Lightning Of Match. ...

Setting Cement And Concrete.

Explanation:

7 0
4 years ago
Read 2 more answers
For the reaction A (g) → 2 B (g), K = 14.7 at 298 K. What is the value of Q for this reaction at 298 K when ∆G = -20.5 kJ/mol?
harina [27]

Answer:

Q= 245 =2.5 * 10^2

Explanation:

ΔG = ΔGº + RTLnQ, so also ΔGº= - RTLnK

R= 8,314 J/molK, T=298K

ΔGº= - RTLnK = - 6659.3 J/mol = - 6.7 KJ/mol

ΔG = ΔGº + RTLnQ → -20.5KJ/mol = - 6.7 KJ/mol + 2.5KJ/mol* LnQ

→ 5.5 = LnQ → Q= 245 =2.5 * 10^2

6 0
4 years ago
A gas mixture of Ne and Ar has a total pressure of 4.00 atm and contains 16.0 mol of gas. If the partial pressure of Ne is 2.75
Stolb23 [73]

Answer:

5 moles of Argon is present in the mixture.

Explanation:

Total pressure of the gaseous mixture = 4 atm

Total number of moles = 16

Partial pressure of Ne = 2.75 atm

By Dalton's law of partial pressure, the total pressure of gaseous mixture is the sum of partial pressures of individual gases which are non-reactive.

Hence:

P_{total}=P_{Ar}+P_{Ne}\\4=P_{Ar}+2.75\\P_{Ar}=1.25\ atm

Also :

Partial pressure = mole fraction*total pressure

P_{Ar}=X_{Ar}P_{total}

X_{Ar}=\frac{1.25}{4}=0.3125

\frac{n_{Ar}}{n_{total}}=0.3125\\n_{Ar}=5

∴Number of moles of Argon = 5

4 0
4 years ago
Can someone help me
Veseljchak [2.6K]

Answer:

Is it D?

Explanation:

3 0
3 years ago
Other questions:
  • How many zn atoms are contained in 922 g of zn
    14·1 answer
  • Why do metals change in appearance over time?
    5·1 answer
  • Ms. Clark added a spoonful of baking soda and then poured a little vinegar into the cup. We observed fizzing and bubbling. Based
    5·1 answer
  • A gas in a sealed container had its volume increased from 12.1 liters to 21.1 liters.
    6·1 answer
  • 20points
    10·2 answers
  • Calculate the activation energy for vacancy formation in Al given that the equilibrium number of vacancies at a temperature of 7
    15·1 answer
  • When a substance changes from one phase to another, which of the following occurs?
    11·1 answer
  • How many atoms of hydrogen are present in a container of water if you have 1.50 x 1023 atoms of oxygen present?​
    9·1 answer
  • What type of van der Waals interactions occur between molecules
    10·1 answer
  • What generally is the current level of deforestation in the United States
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!