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
Margaret [11]
3 years ago
13

Mohr's salt is a pale green crystalline solid which is soluble in water. It is a 'double sulfate' which contains two cations, on

e of which is Fe2+.The identity of the second cation was determined by heating solid mohr's salt with solid sodium hydroxide and a colourless gas was evolved. The gas readily dissolved in watdr giving an alkaline solution. A grey green solid residue was also formed which wasd insoluble in water. Whate are the identities of the gas and solid residue? A. Gas: H2 Residue: FeSO4 B.NH3 Na2SO4 C. NH3 Fe(OH)2 D. SO2 Fe(OH)2
Chemistry
1 answer:
Veronika [31]3 years ago
3 0
The gas is NH₃.
H₂ doesn't dissolve readily in water, SO₂ gives an acidic solution in water.

The solid residue is Fe(OH)₂.
FeSO₄ and Na₂SO₄ are soluble in water.

The answer is C.
You might be interested in
If the frequency of an FM wave is 8.85 × 107 hertz, what is the period of the FM wave?
Keith_Richards [23]
NAMASTE

HERE IS YOUR ANSWER:

\boxed{Frequecy = \frac{1}{time \: period} }

Frequency (given) = 8.85× {10}^{7}hz

time period =
\frac{1}{8.85 \times {10}^{7}}

= 0.112 × {10}^{-7}

= 1.12 × {10}^{-8}
7 0
3 years ago
Read 2 more answers
Calculate the specific heat in J/(g·ºC) of an unknown substance if a 2.50-g sample releases 12.0 cal as its temperature changes
abruzzese [7]

Answer:

the answer is -5 J/(g.°C)

8 0
3 years ago
What energy transformation occurs when a car stereo is turned on?
lana66690 [7]
It turns from electrical energy into light energy.
8 0
3 years ago
What coefficient values will balance the reaction shown? CS2 + Cl2? CCl4 + S2Cl2 A. 1,1,1,1 B. 1,3,1,1 C. 2,1,1,1 D. 1,2,1,2
Talja [164]
The answer is B. 1,3,1,1.

Brady
5 0
3 years ago
Plesse help asap!!!​
Naily [24]

Answer:

4.4×10² cm³

Explanation:

From the question given above, the following data were obtained:

Diameter (d) = 68.3 mm

Height (h) = 0.120 m

Volume (V) =?

Next, we shall convert the diameter (i.e 68.3 mm) to cm.

This can be obtained as follow:

10 mm = 1 cm

Therefore

68.3 mm = 68.3 mm / 10 mm × 1 cm

68.3 mm = 6.83 cm

Therefore, the diameter 68.3 mm is equivalent 6.83 cm.

Next, we shall convert the height (i.e 0.120 m) to cm. This can be obtained as follow:

1 m = 100 cm

Therefore,

0.120 m = 0.120 m/ 1 m × 100 cm

0.120 m = 12 cm

Therefore, the height 0.120 m is equivalent 12 cm.

Next, we shall determine the radius of the cylinder. This can be obtained as follow:

Radius (r) is simply half of a diameter i.e

Radius (r) = Diameter (d) /2

r = d/2

Diameter (d) = 6.83 cm

Radius (r) =?

r = d/2

r = 6.83/2

r = 3.415 cm

Finally, we shall determine the volume of the cylinder as follow:

Radius (r) = 3.415 cm

Height (h) = 12 cm

Volume (V) =?

Pi (π) = 3.14

V = πr²h

V = 3.14 × (3.415) ² × 12

V = 440 cm³

V = 4.4×10² cm³

Therefore, the volume of the cylinder is 4.4×10² cm³

8 0
3 years ago
Other questions:
  • How and why does 2-Naphthol differ from benzoic acid when adding NaHCO3
    10·1 answer
  • Physical properties are :
    10·1 answer
  • A solution of HNO 3 is standardized by reaction with pure sodium carbonate. 2 H + + Na 2 CO 3 ⟶ 2 Na + + H 2 O + CO 2 A volume o
    14·1 answer
  • What is the relative mass of an electron?
    7·2 answers
  • The surface temperature of a star is indicated by which characteristic?
    7·2 answers
  • How much heat energy is required to raise the temperature of 20 kilograms of water from 0°C to 35°C?
    10·1 answer
  • Which will have the MOST kinetic energy?
    11·1 answer
  • Chemistry
    15·1 answer
  • Compounds and mixtures are both types of substances that contain different types of atoms. Alena is given a sample of material t
    6·1 answer
  • How will an increase in wind speed affect soil erosion?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!