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Rom4ik [11]
3 years ago
15

a solid x when heated gives up a brown gas. If x is soluble in excess sodium hydroxide solution but insoluble in excess ammonium

hydroxide solition. What is X?
Chemistry
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

Lead (ii) nitrate

Explanation:

It is soluble in sodium hydroxide but insoluble in aqueous ammonia

When heated it produces nitrogen (IV) oxide that isbrown in colour

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Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) partly because iodine monochloride is a(n)
tekilochka [14]

Answer: polar molecule.

Explanation:

The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. The boiling point is dependent on the type of forces present.

Iodine monochloride (ICl) is a polar molecule due to the difference in electronegativities of iodine and chlorine. Thus the molecules are bonded by strong dipole dipole forces. Thus a higher temperature is needed to generate enough vapor pressure.

Bromine (Br_2) is a non polar molecule as there is no electronegativity difference between two bromine atoms. The molecules are bonded by weak vanderwaal forces and thus has low boiling point.

7 0
3 years ago
Which equation represents a double replacement reaction?
AveGali [126]

Answer:

C) LiOH + HCl → LiCl + H₂O

General Formulas and Concepts:

<u>Chemistry - Reactions</u>

  • Synthesis Reactions: A + B → AB
  • Decomposition Reactions: AB → A + B
  • Single-Replacement Reactions: A + BC → AB + C
  • Double-Replacement Reactions: AB + CD → AD + BC

Explanation:

<u>Step 1: Define</u>

RxN A:   2Na + 2H₂O → 2NaOH + H₂

RxN B:   CaCO₃ → CaO + CO₂

RxN C:   LiOH + HCl → LiCl + H₂O

RxN D:   CH₄ + 2O₂ → CO₂ + 2H₂O

<u>Step 2: Identify</u>

RxN A:   Single Replacement Reaction

RxN B:   Decomposition Reaction

RxN C:   Double Replacement Reaction

RxN D:   Combustion Reaction

7 0
3 years ago
I need anyone to answer me.. ​
artcher [175]
A. 2,3
B. 19
C. 28
D. 33
4 0
3 years ago
Which term best describes liquid behavior under pressure?
maxonik [38]

Answer:

Option a incompressible

Explanation:

Liquids have definite volume, but indefinite shape.

Liquids take the shape of the container . When a liquid is inside a container, it will take its shape. Unlike gases, a liquid cannot change its volume to spread out and completely fill a container.  Hence a liquid cannot be compressed.

Immiscible is not right because this applies only when two liquids are there

Surfectants are compounds that reduce the surface tension between two liquids or a liquid or a gas, etc.

Hence here appropriate choice is

a) incompressible

7 0
3 years ago
Read 2 more answers
Put the basic steps of pyruvate oxidation in order.
Lunna [17]

Answer:

1. carboxyl group is removed from pyruvate and releases 1 co2 molecule and leaves 2 carbon molecules

2. 2-carbon molecule is oxidized and electrons lost in oxidation are picked up by nad+ to form Ndah

3. oxidized 2 carbon molecule is attached to coenzyme a to form ACETYL COA

Explanation:

5 0
2 years ago
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