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
Dimas [21]
3 years ago
6

To separate a mixture of iron filings and salt, the most efficient method would be

Chemistry
1 answer:
GaryK [48]3 years ago
4 0

Answer:

Explanation:

Of course you could do the separation chemically. Dissolve the salt up in water, pass thru a filter, wash the iron filings with ethanol, which would encourage the salt to precipitate from solution.

I do hope I helped you! :)

You might be interested in
The competition between the U.S. and the Soviet Union to get satellites and humans into space was known as the:
Alex787 [66]

Answer: It was known as the SPACE RACE.

Explanation: The space race was a cold war between the Soviet Union (USSR) and the United States (US), to get satellites and humans into space. The competition began in earnest on August 2, 1955, when the Soviet Union responded to the US announcement. On April 12, 1961, the USSR surprised the world again by launching Yuri Gagarin into a single orbit around the Earth in a craft they called Vostok 1.

7 0
3 years ago
Which substance is an electrolyte? 1. O2 2. Xe 3. C3H8 4. KNO3
Troyanec [42]
KNO3 is an electrolyte
3 0
3 years ago
To be able to see a measurable effect, your boiling point elevation must be at least 1.00°C. Knowing that the Kb­ of water is 0.
ale4655 [162]

Answer : The mass of calcium chloride (in g) needed is, 1.92 grams.

Explanation : Given,

Boiling point of elevation constant (K_b) for water = 0.512^oC/m

Mass of water (solvent) = Density\times Volume=1.00g/mL\times 26.63mL=26.63g=0.02663kg

Molar mass of CaCl_2 = 110.98 g/mole

Formula used :  

\Delta T_b=i\times K_b\times m\\\\\Delta T_b=i\times K_b\times\frac{\text{Mass of }CaCl_2}{\text{Molar mass of }CaCl_2\times \text{Mass of water in kg}}

where,

\Delta T_b = change in boiling point  = 1.00^oC

i = Van't Hoff factor = 3 (for electrolyte)

K_b = boiling point constant for water

m = molality

Now put all the given values in this formula, we get

1.00^oC=3\times (0.512^oC/m)\times \frac{\text{Mass of }CaCl_2}{110.98g/mol\times 0.02663kg}

\text{Mass of }CaCl_2=1.92g

Therefore, the mass of calcium chloride (in g) needed is, 1.92 grams.

4 0
3 years ago
Who uses chemicals?
Schach [20]
A. Everyone. Ppl use chemicals everyday and don’t even know it. And that’s why its everyone periodt
7 0
4 years ago
PLEASE HELP ME!!!
Kazeer [188]

722391465.060241 MHz

sbbshahshaja

3 0
3 years ago
Other questions:
  • You have nitrogen gas (N2) at a pressure of 0.5 atm, a volume of 25000 mL, and a temperature of 300 K, how many grams of nitroge
    5·1 answer
  • Which describes a chemical properties
    13·1 answer
  • Draw the lewis structure for nitrogen tribromide
    8·1 answer
  • Write the equilibrium equation for the acetic acid/acetate buffer system. The formula of acetic acid is CH3CO2H .
    15·1 answer
  • If the ka of a monoprotic weak acid is 1.2 × 10-6, what is the ph of a 0.40 m solution of this acid?
    8·1 answer
  • True or false the nucleus of an atom is made of protons and neutrons
    7·2 answers
  • The minimum amount of energy that particles must have in order to react is known as the... what?
    5·1 answer
  • Question is in picture! Due in 30 minutes!
    12·1 answer
  • Why is it important to name "air" as part of the system?
    6·1 answer
  • What would be the effect on the boiling point if you decrease the pressure over a liquid?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!