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3 years ago

Unlike an acid, an aqueous solution of a base

Chemistry

1 answer:

HACTEHA [7]3 years ago

3 0

Answer:

D) contains more OH– ions than H+ ions

Explanation:

THESE ARE THE OPTIONS FOR THE QUESTION

A) causes some indicators to change color B) conducts electricity C) contains more H+ ions than OH– ions D) contains more OH– ions than H+ ions

Base can be regarded as substance which can dissociates in water then form hydroxide ions (OH–) .

Bases can be regarded as compounds which break into hydroxide ions I.e (OH-) with more other compounds if put in an aqueous solution. Hence it contains more OH– ions

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Of these electromagnetic waves, which has the... longest wavelength greatest energy?

Molodets [167]

Wavelength is proportional to the period of the wave which means the greater the period, the longer the wavelength. energy is proportional to the amplitude or height of the waves. meanwhile, frequency is inversely proportional to the period of the wave function.

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3 years ago

The reactant side of a balanced chemical equation is shown below.

Tresset [83]

Answer: There are 8 hydrogen atoms on the product side in the reaction.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This law also states that total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.

For the given reaction, the balance chemical equation follows:

$PCl_5+4H_2O\rightarrow H_3PO_4+5HCl$

On reactant side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

On Product side:

Number of Phosphorus atoms = 1

Number of Chlorine atoms = 5

Number of Hydrogen atoms = 8

Number of Oxygen atoms = 4

Hence, there are 8 hydrogen atoms on the product side in the reaction.

7 0

3 years ago

Which element is a noble gas? A. W B. Ar C. N D. Er

inessss [21]

His the answer I hope it helps

3 0

3 years ago

What are other materials found in the earth's crust

Kitty [74]

Answer:

From mud and clay to diamonds and coal, Earth's crust is composed of igneous, metamorphic, and sedimentary rocks. The most abundant rocks in the crust are igneous, which are formed by the cooling of magma. Earth's crust is rich in igneous rocks such as granite and basalt.

Explanation:

7 0

3 years ago

what mass of carbon dioxide gas occupies a volume of 81.3 L at 204kPa and a temperature of 95 degrees celcius

pishuonlain [190]

The mass of carbon dioxide will be 238.51g

Explanation:

Given:

Volume, V = 81.3 L

Pressure, P = 204 kPa

P = 204000Pa

Temperature, T = 95°C

T = 95 + 273K

T = 368K

mass of CO₂, m = ?

According to the gas law:

PV = nRT

where, R is the gas constant

n is the moles

and the value of R = 8.314 X 10³ L⋅Pa⋅K⁻¹⋅mol⁻¹

n = m/w

where,

m is the mass of the substance

w is the molecular weight

and molecular weight of CO₂ is 44 g

On substituting the value we get:

$204000 X 81.3 = \frac{m}{44} X 8.314 X 10^3 X 368\\\\m = \frac{204 X 81.3 X 44}{8.314 X 368} \\\\m = 238.51 g$

Therefore, the mass of carbon dioxide will be 238.51g

5 0

3 years ago