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2 years ago

Balancing Chemical Equations

Chemistry

1 answer:

AURORKA [14]2 years ago

7 0

Answer:

Refer to the pictures.

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Grains, such as corn, wheat, and rice, are the world's most popular food crops.

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3 years ago

Which formula represents hydrofluoric acid? HFO H2F HFO 4 HF

natulia [17]

Answer:

it's HF

Explanation:

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4 years ago

Read 2 more answers

How many atoms and ions does lithium sulfite have?

Serhud [2]

Answer:

Hence the ions per mole are:

$Li^{+}= 2 ions$

$SO_{3}^{2-}(aq)= 1 ions$

In one mole of Li2SO3 , the number of the atoms are

$N_{a}=6.022\times 10^{23}$

Explanation:

The formula of lithium sulfite is Li2SO3.

$Li_{2}SO_{3}$

It contain Li+ and SO3(2-) ions.This can be represented by :

$Li_{2}SO_{3}(s)\rightarrow 2Li^{+}(aq) +SO_{3}^{2-}(aq)$

Hence one mole of Li2SO3 will give 2 Li+ ions and 1 SO3 (2-) ion.

Hence the ions per mole are:

$Li^{+}= 2 ions$

$SO_{3}^{2-}(aq)= 1 ions$

Number of atoms in lithium sulfite depends upon the mass of the Li2SO3 present .

Li2SO3 = 93.94 g/mole

This mass is equal to 1 mole of Li2SO3

Now 1 mole of any substance contain Na atoms . This is known as Avogadro Number.

$N_{a}=6.022\times 10^{23}$

Hence , if 1 mole of Li2SO3 is present then it contains Na atoms

If other then 1 mole present then number of atoms are calculated by:

$Number\ of\ Atoms=Moles\times (N_{a})$

Here n = number of moles

if the mass of the compound is given then first calculate the number of moles.

$Moles=\frac{mass}{Molar\ mass}$

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3 years ago

Some elements achieve stable electron configurations through the transfer of _________ between atoms.

Law Incorporation [45]

Shared electrons between atoms

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3 years ago

As the sun heats the surface of the oceans, two layers of water result. What separates the layers?

Basile [38]

Answer:

Thermocline separate these two layers.

Explanation:

Ocean consist of three major layers on the basis of temperature.

1. Upper layer

2. Deep layer

3. Thermocline

Upper layer:

The first layer is called upper layer which is present on the surface and directly expose to the sun. The sun heat up this upper layer easily and warm it.

Deep layer

The deep layer is present below the thermocline. It is present in deep where sunlight can not approach to it and its temperature remain low.

Thermocline

It is the middle layer, present between the upper and deep layer. It separated the upper layer from deep layer. Its upper portion is warmer while lower is colder.

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3 years ago