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3 years ago

Hi Please help me, thank you

Chemistry

1 answer:

seropon [69]3 years ago

3 0

Answer:

C I might be wrong tho

Explanation:

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The reaction below will occur in a gaseous system at STP:

WARRIOR [948]

Answer:

V = 12.5 L

Explanation:

Given data:

Volume of NO = 15.0 L

Temperature and pressure = standard

Volume of nitrogen gas produced = ?

Solution:

Chemical equation:

6NO + 4NH₃ → 5N₂ + 6 H₂O

Number of moles of NO:

PV = nRT

n = PV/RT

n = 1 atm × 15.0 L / 0.0821 atm.L /mol.K × 273.15 K

n = 15.0 atm.L / 22.43 atm.L /mol

n = 0.67 mol

now we will compare the moles of No and nitrogen gas.

NO : N₂

6 : 5

0.67 : 5/6×0.67 = 0.56

Volume of nitrogen gas:

PV = nRT

1 atm × V = 0.56 mol × 0.0821 atm.L /mol.K × 273.15 K

V = 12.5 atm.L / 1 atm

V = 12.5 L

4 0

3 years ago

What kind of reaction is represented by the dancing figures?

Darina [25.2K]

C - single replacement reaction

6 0

3 years ago

What makes balancing redox reactions different from balancing other reactions?

sergejj [24]

Redox reactions are those chemical reactions that involve the transfer of electrons between reactants, altering the oxidation state of their elements.

In this type of reactions an element releases electrons that another element accepts, so there is a net transfer of charge.

When balancing redox reactions, not only must the chemical elements in the reactants and products be equalized (by the law of conservation of the mass), but also the charged that is transferred in the process must be balanced, since the electrons that are lost in oxidation are the same as those that are gained in reduction (law of conservation of charge: there is no destruction or net creation of electric charge).

6 0

3 years ago

The valencies of metal a,band c are 1,2,3respectively what is the formula of hydroxide of a

Luba_88 [7]

The formula of metal hydroxides for

A) metal A = A(OH)

B) metal B = B(OH)₂

C) metal C = C(OH)₃

<h3>What are hydroxides?</h3>

When a metal's oxide combines with water, a hydroxide is created.

The general formula of hydroxide is:

M(OH)ₙ

where n is the valency of metal.

OH has a valency of -1

A) The formula of hydroxide of metal A:

The valency of metal A is 1

This means, here, n = 1

Therefore, the metal hydroxide formula will be = A(OH)

B) The formula of hydroxide of metal B:

The valency of metal B is 2

This means, here, n = 2

Therefore, the metal hydroxide formula will be = B(OH)₂

C) The formula of hydroxide of metal C:

The valency of metal C is 3

This means, here, n = 3

Therefore, the metal hydroxide formula will be = C(OH)₃

Learn more about formula of hydroxides here:

brainly.com/question/23442676

#SPJ4

6 0

2 years ago

Jenny read that most of Earth’s water is salt water, while only 3% is fresh water. She also read that not all of the fresh water

xenn [34]

Answer:

B. ice and glaciers

Explanation:

The majority of total freshwater on Earth, about 68.7 percent, is held in ice caps and glaciers.

6 0

3 years ago