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3 years ago

Given this reaction, N2O4(g) 2NO2(g), what shifts will occur if Q = K?

Chemistry

1 answer:

MAXImum [283]3 years ago

7 0

Answer:

It shifts to the left

Explanation:

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Titan is bigger than mercury. true or false.

worty [1.4K]

Yes, Titan is bigger than Mercury. So basically, it's true.

3 0

3 years ago

A piece of wood that measures 2.7 cm x 5.5 cm x 3.9 cm has a mass of 84 g what is the density of the wood

Korolek [52]

The density of the wood : 1.45 g/cm³

<h3>Further explanation </h3>

Density is a quantity derived from the mass and volume

Density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density

The unit of density can be expressed in g/cm³ or kg/m³

Density formula:

$\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}$

ρ = density

m = mass

v = volume

Volume of the wood

$\tt V=2.7\times 5.5\times 3.9=57.915~cm^3$

density

$\tt \rho=\dfrac{m}{V}\\\\\rho=\dfrac{84~g}{57.915~cm^3}=\boxed{\bold{1.45`g/cm^3}}$

6 0

3 years ago

Give the chemical symbols for the following elements: (a) potassium, (b) tin, (c) chromium, (d) boron,(e) barium, (f) plutonium,

Ilia_Sergeevich [38]

Answer:

A) Alkili Metal

B) Basic Metal

C) Transition Metal

D) Semimetal

E) Alkiline Earth

F) Actinide

G) Nonmetal

H) Noble Gas

I) Transitional Metal

Hope This Helps

8 0

3 years ago

A 7.50-g sample of iron is heated in oxygen to form an iron oxide. if 10.71 g of the oxide is formed, what is its empirical form

Zielflug [23.3K]

Answer is: empirical formula is Fe₂O₃.
m(Fe) = 7,50 g.
m(iron oxide) = 10,71 g.
n(Fe) = m(Fe) ÷ M(Fe).
n(Fe) = 7,50 g ÷ 55,85 g/mol = 0,134 mol.
m(O) = m(iron oxide) - m(Fe).
m(O) = 10,71 g - 7,50 g = 3,21 g.
n(O) = 3,21 g ÷ 16 g/mol = 0,20 mol.
n(Fe) : n(O) = 0,134 mol : 0,2 mol = 2 : 3.

3 0

3 years ago

For the set of ionic compounds, LiCl, AgCl, PbCl2, choose the correct characterization of their solubilities in water from the r

sergiy2304 [10]

Answer:

Two of the three salts are soluble.

One of the three salts is soluble.

Explanation:

<em>One or two of the three salts would be soluble in water depending on if the water is cold or hot.</em>

<u>According to the solubility rules of chloride salts, all chlorides are soluble in cold water except for those of silver (Ag), lead (Pb), and mercury (I) (Hg). </u>

This thus means that both AgCl and $PbCl_2$ would be insoluble in cold water while LiCl would be soluble.

$PbCl_2$ is, however soluble in hot water.

Hence, in cold water, one of the three salts (LiCl) would be soluble, while in hot water, two of the three salts (LiCl and $PbCl_2$ ) would be soluble.

7 0

3 years ago