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
Monica [59]
3 years ago
10

When fe(no3)2(aq) and na2s(aq) are mixed, what is the black coloured precipitate that forms?

Chemistry
1 answer:
marshall27 [118]3 years ago
7 0
The black coloured precipitate that form is IRON ll SULPHIDE, FeS.
Iron sulphide ll sulphide is black in colour and is insoluble in water. It possess very high melting temperature and react in acids. Iron ll sulphide is used as pigment in hair dyes, glasses, bottles and paints. It is also used as lubricant.
You might be interested in
PLEASE HURRY!!!
Bezzdna [24]

Answer:

  • <em><u>Measurement of the amount of variation of the species in a given area. </u></em>

Explanation:

<em>Bio</em> preffix means life. Thus, literally, biodiversity means how diverse is the life. This is, how many different organisms an ecosystem or biome has.

Thus, biodiverstiy, although more complex than just that, is a measure of the number of species that live in a region.

The biome with most species than any other, this is the biome with the greatest biodiversity, is the tropical rainforest biome, which are located near the equator. As you can imagine, a large number of different plants, animals, and microorganisms live in these forests, making them the regions with greatest biodiversity on the planet.

6 0
4 years ago
ASAP I AM GIVING BRAINLIEST PLEASEEEEEEEEE HELPPPPPPPPPPPPPPPPPP
zepelin [54]

Answer:

B?

Explanation:

In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles. Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles.

7 0
3 years ago
would a cloud or a rock be more dense? PLSSSSSS HELP PLSSS I WILL MARK BRAINLIEST AND ANSWER SOME OF YOUR QUESTIONS
QveST [7]
A rock is definitely more dense. If you were to put a cloud in water it would float/stay above it and a rock would sink to the bottom
6 0
3 years ago
Will mark as Brainliest.
postnew [5]
<span>0.453 moles O2 is the solution</span>
3 0
3 years ago
Read 2 more answers
What is the formula for the compound dinitrogen pentoxide? n4o5 n5o4 n4o6 n5o2 n2o5?
STALIN [3.7K]
<span>N2, penta means 5, so 5 oxygens

so with that being said n205</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose you wanted to monitor a pH change between 5.3 and 6.3. Which indicator would be most appropriate?
    14·2 answers
  • Solve for y in the following problem: 5.3 x 10- (y)(2y)
    11·1 answer
  • How many grams of carbonic acid were produced by the 3.00 g sample of NaHCO
    9·1 answer
  • The physical properties of a solution and the properties of the individual components are
    11·2 answers
  • Which element has fewer than 4 dots In its Electron dot diagrams
    10·1 answer
  • Whats is nail polish remover
    13·1 answer
  • Can anyone answer this? I'd appreciate it. :0
    9·2 answers
  • Label each half cell in this diagram of a voltaic cell to identify which electrode it contains and the process occurring at the
    10·2 answers
  • Why do samples of platinum and copper have the same extensive properties?
    11·1 answer
  • Consider the above reaction. If some CO2 were removed from the container, what would the reaction do in an attempt to replace th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!