Na2CO3 + AlBr3 —>What are the products and skeletal equation?

Answer: 3.23 x 10^23

Explanation: The number of molecules is found when the number of moles is multiplied by Avogadro's number, which is 6.022 x 10^23

5.36 moles x 6.022 x10^23 = 3.23 x 10^23

Answer:

true

Explanation:

Solid, liquid and gases are the only three States of matter

Answer:

1.sea water 2.fresh water 3. Salt and ice

4.salted roads 5. Sugar solution used for making candy

Explanation:

Because Truck

Answer:

salted roads

sugar something

pure water

Explanation:

trust me bro

Infrared is lower frequency than visible light, and ultraviolet is higher frequency. Other forms of energy in the electromagnetic spectrum include radio waves, microwaves, and X-rays.

With a lower frequency than visible light, infrared light lies just beyond the visible light spectrum. The visible light spectrum is immediately preceded by the ultraviolet region, which has a greater frequency.

Gamma rays, X-rays, and radio waves are three other types of energy that can be found in the electromagnetic spectrum. The frequency of gamma rays is the greatest, that of X-rays is between that of gamma rays and that of ultraviolet light, and that of radio waves is the lowest.

These numerous energy types, which are all a part of the electromagnetic spectrum, provide us with a number of opportunities to view and study the cosmos.

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The period is equal to the number of shells present in an atom.

The group number is equal to the number of valence electrons.

A period in the periodic table is a row of chemical elements.

The horizontal rows (which Mendeleev called series) are called periods and the vertical columns, are groups.

Elements having similar outer electronic configurations in their atoms are arranged in vertical columns.

The period indicates the value of n for the outermost or valence shell. The period is equal to the number of shells present in an atom. To find a period, the no. of shells =no. of periods.

Example: Na- 2,8,1 - Three shells are there, so period no. is 3.

Calcium - 2,8,8,2 - Four shells are there, so period no. is 4.

To determine the group, we need to understand some rules:

1. If the element is in s block, then the group number is equal to the number of valence electrons.

Example: Mg(12) - 2,8,2

Group = no. of valence electrons = 2

2. If the element is in the p block, then the number of the group can be determined by the formula: (number of valence electrons + 10).for groups.

Example: S(16) - 2,8,6

Group = no. of valence electrons+ 10 = 6+ 10 = 16

3. If the element is in the d block, then the number of the group can be determined by the formula: number of electrons in(n−1)d subshell + (number of electrons in (n)s subshell).

Example: Fe(26):

\([Ar]3d^64s^2\)

Group = number of electrons in(n−1)d subshell + (number of electrons in (n)s subshell) = 6+2 = 8

4. If the element is in the f block, then the number of the group is always 3.  Example: Cerium (58) belongs to the 3rd group.

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Answer:

sorry im just doin it for the points but i rlly dont know

Explanation:

Answer:

Where are the options??

We can't answer without them.

Answer:

compared to sodium, silicon has a higher ionization energy meaning it takes more energy to remove electrons.

Explanation:

hope this helps

can u please give me and Brainlist

One important aldehyde is formaldehyde (HCHO), which has many significant uses. It is used as a preservative in medical laboratories and mortuaries, as well as in the manufacture of disinfectants, cosmetics, and fertilizers.

Formaldehyde is a crucial component in the production of urea-formaldehyde resins, which are widely used in the manufacture of particleboard and other composite wood products. These resins are also used as adhesives in the production of plywood, medium-density fiberboard (MDF), and oriented strand board (OSB).

Formaldehyde has a variety of medical applications. It is used in the preparation of vaccines, as well as in the production of surgical implants and other medical devices. Formaldehyde is also used in the production of some medications, including certain types of antibiotics.

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The difference between the outer covering of plants and animals is that plant cell has cellulose cell wall while animal cell is surrounded by a cell membrane

A cell is the structural and functional unit of an organism which is capable of existing alone as it contains organelles that perform specific functions.

The plant cell is covered by a rigid cell wall which contains cellulose as its outer covering.

The animal cell contains not cellulose cell wall at its out covering but instead it is covered by a cell membrane.

Therefore, the difference between the outer covering of plants and animals is that plant cell has cellulose cell wall while animal cell is surrounded by a cell membrane.

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1 minute = 60 seconds

Therefore 8 minutes = 480 seconds.

1 second = 1x10^9 nanoseconds

Therefore 480 seconds = 4.8x10^11 nanoseconds

It takes 4.8x10^11 nanoseconds

Answer:

Example 1

palladium(II) nitrate,

Example 2

Metal catalysts such as Fe, Ni, Mo, and Co are routinely used in the manufacture of CNMs.

Explanation

The three metals used in catalytic converters — rhodium, platinum and palladium — are part of a category known as platinum group metals, or PGMs, which are known for their catalytic properties.

The "Wakanda speech," six weeks have passed, and the world is still in shock.

Thus, Global leaders and analysts were taken aback by King T'Challa's declaration at the United Nations General Assembly that the Kingdom of Wakanda is not a developing country of textiles, farms, and shepherds with a GDP per person of roughly $760 but rather a technological superpower and Wakanda speech.

The country's widespread employment of cutting-edge magnetic levitation trains, flying machines, opaque holograms, and spinal cord-healing beads has led to the coining of the phrase "uber-developed" nation.

The most watched video ever is currently "Welcome to the Future," an introduction video created by Wakanda's recently established Ministry of Foreign Affairs.

Thus, The "Wakanda speech," six weeks have passed, and the world is still in shock.

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Answer:

Mass = 6.538 g

Explanation:

Given data:

Mass of zinc hydroxide produced = 9.65 g

Mass of zinc required = ?

Solution:

Chemical equation:

Zn + 2MnO₂ + H₂O      →      Zn(OH)₂ + Mn₂O₃

Number of moles of zinc hydroxide:

Number of moles = mass/molar mass

Number of moles = 9.65 g/ 99.42 g/mol

Number of moles = 0.1 mol

now we will compare the moles of zinc and zinc hydroxide,

                  Zn(OH)₂           :          Zn

                       1                  :          1

                    0.1                  :         0.1

Mass of zinc required:

Mass = number of moles × molar mass

Mass = 0.1 mol × 65.38 g/mol

Mass = 6.538 g

Answer: 6.35

Explanation:

The milliliters of hot air that a balloon's gondola is suspended below is 2775millilitres.

Litres and millilitres are both unit of measures of volume.

According to this question, a hot air balloon's gondola is suspended below a cloth envelope containing 2.775 x 10⁰ liters of hot air.

The conversion factors of litres to milllilitres;

1000mL = 1L

2.775 × 10⁰ × 1000 = 2775millilitres

Therefore, the milliliters of hot air that a balloon's gondola is suspended below is 2775millilitres.

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Potash alum, represented by the chemical formula KAl(SO4)2·12H2O, is a double salt because it consists of two different salts, potassium sulfate (K2SO4) and aluminum sulfate (Al2(SO4)3), combined together. It forms a unique crystalline structure with 12 water molecules incorporated in its composition.

Potash alum is a type of alum that is commonly used in dyeing and water purification applications. The chemical formula for alum is KAl(SO4)2·12H2O.

The term "double salt" refers to the fact that the compound is made up of two different types of ions that are combined together.
In the case of potash alum, the two different types of ions are potassium ions (K+) and aluminum ions (Al3+). These two ions are combined together in a 1:1 ratio to form a complex ion, KAl(SO4)2, which is then combined with 12 water molecules to form the final compound, KAl(SO4)2·12H2O.
The term "double salt" is used to describe this type of compound because it contains two different types of cations (positive ions) that are combined together to form a single crystal lattice structure.

The two different cations are held together by ionic bonds, which are relatively strong and help to give the compound its characteristic properties.
Potash alum is a particularly useful compound because it has a number of important properties that make it useful in a variety of applications.

For example, it is highly soluble in water, which makes it a good choice for use in water purification applications.

It is also relatively stable and non-toxic, which makes it safe to use in a variety of different settings.

Finally, it has a number of useful physical properties, such as its ability to form crystals that are highly reflective and have a characteristic octahedral shape.

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Answer:  The balanced equation for the given reaction is

\(2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)\).

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side.

For example, \(SO_{2}(g) + O_{2}(g) \rightarrow SO_{3}(g)\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance this equation, multiply \(SO_{2}\) by 2 on reactant side and multiply \(SO_{3}\) by 2. Hence, the equation will be re-written as follows.

\(2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)\)

Here, number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

Now, there are same number of atoms on both reactant and product side. So, this equation is balanced.

Thus, we can conclude that the balanced equation for the given reaction is \(2SO_{2}(g) + O_{2}(g) \rightarrow 2SO_{3}(g)\).

When fossil fuels burn, several forms of energy are produced, including:

Heat energy: The primary form of energy released during fossil fuel combustion is heat. Fossil fuels contain chemical energy stored for millions of years, and when they burn, this energy is released in the form of heat. The heat energy can be harnessed for various purposes, such as heating buildings or generating steam to drive turbines.

Light energy: Burning fossil fuels can also produce light energy in the form of flames or glowing embers. This light energy is a byproduct of combustion.

Mechanical energy: Heat generated by burning fossil fuels can be converted into mechanical energy. This is typically achieved by using heat to produce steam, which drives a turbine connected to a generator. The rotating turbine converts the heat energy into mechanical energy, which is further transformed into electrical energy.

Electrical energy: Through the process described above, burning fossil fuels can ultimately generate electrical energy. The mechanical energy produced by the turbine is converted into electrical energy by the generator. Electrical energy can power various devices, appliances, industries, and infrastructure.

It's critical to note that while burning fossil fuels can produce useful forms of energy, it also results in the release of carbon dioxide and other greenhouse gases. This contributes to climate change and environmental concerns. As a result, there is a global shift towards cleaner and renewable energy sources to mitigate these negative impacts.

Answer:

Explanation:

c) fusion combines into one product plus energy

Answer:

that is a solid and that there are other ways to make a fire?

Explanation:

The atomic mass of sulfur trioxide can be calculated as follows:

1 molecule of sulfuric acid has a mass of 98 amu, and it is composed of 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms. So, the mass of hydrogen and oxygen atoms in 1 molecule of sulfuric acid is (2 * 1 amu) + (4 * 16 amu) = 34 amu.

Therefore, the mass of sulfur in 1 molecule of sulfuric acid is 98 amu - 34 amu = 64 amu.

Since 1 molecule of sulfuric acid is formed from 1 molecule of sulfur trioxide, the atomic mass of sulfur trioxide can be calculated as 64 amu.

Sulfur trioxide reacts with water to form sulfuric acid according to the following reaction: SO₃ + H₂O → H₂SO₄ Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one molecule of sulfuric acid has a mass of 98 amu, the atomic mass of sulfur trioxide is 80 amu.

According to the law of conservation of mass, in a reaction, atomic mass of the reactants will be equal to atomic mass of the products if the reaction is balanced and above reaction is balanced. Hence,

Mass of SO₃ + Mass of H₂O = Mass of H₂SO₄

x + 18 = 98

x = 80 amu = Mass of SO₃

Therefore, when Sulfur trioxide reacts with water to form sulfuric acid according to the following reaction: SO₃ + H₂O → H₂SO₄ Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one molecule of sulfuric acid has a mass of 98 amu, the atomic mass of sulfur trioxide is 80 amu.

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The mole fraction of sulfuric acid in the solution is 1.78 x 10^-4.

We need to know how many moles of sulfuric acid and how many moles there are in the solution as a whole in order to figure out the mole fraction of sulfuric acid.

To begin, we must convert the sulfuric acid's mass into moles. The molar mass of sulfuric corrosive is 98.08 g/mol. As a result, the number of moles of sulfuric acid is equal to 3.4 g divided by 98.08 g/mol, or 0.0347 mol.

Next, we need to figure out how many moles are all around the solution. We can expect that the volume of the arrangement is equivalent to the volume of water added (3500 ml). Notwithstanding, we want to switch the volume from milliliters over completely to liters since the unit of mole portion is moles per liter.

As a result, the volume of the solution is 3500 ml, or 3.5 L. Based on the assumption that water has a density of 1 g/mL, the mass of water in the solution can be calculated as follows:

The molar mass of water, which is 18.02 g/mol, can be used to determine the number of moles of water: mass of water = volume of water x density of water = 3500 ml x 1 g/mL = 3500 g

The mole fraction of sulfuric acid in the solution can be calculated as follows: 3500 g x 18.02 g/mol = 194.14 mol

Mole fraction of sulfuric acid is calculated by dividing the total number of moles in the solution by the number of moles of sulfuric acid: 0.0347 mol / (0.0347 mol + 194.14 mol) = 1.78 x 10-4.

Therefore, the mole fraction of sulfuric acid in the solution is 1.78 x 10^-4.

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Answer:

It is found in confectionery, cotton candy, soft drinks, instant puddings, flavored chips (Doritos, Nachos), cereals (corn flakes, muesli), cake mixes, pastries, custard powder, soups (particularly instant or "cube" soups), sauces, some kinds of rice (paella, risotto, etc.), Kool-Aid, Mountain Dew, Gatorade, ice cream

Answer:

3P2O5:

P:6 O:15

5CO2

C:5 O:10

3C6H12O6

C:18 H:36 O:18

4C6H12

C:24 H:48

3Mg3(PO4)2

Mg:9 P:2 O: 8

4(NH4)2S

N:8 H:32 S:4

Answer:

75 g

Explanation:

\(m_1\) = Initial mass of water = 90 g

c = Specific heat of water

\(\Delta T_1\) = Initial temperature difference = \((37.08-22.08)^{\circ}\text{C}\)

\(m_1\) = Mass of water to be added

\(\Delta T_2\) = Final temperature difference = \((37.08-55.08)^{\circ}\text{C}\)

Since, heat energy in the system is conserved we know

\(m_1c\Delta T_1+m_2c\Delta T_2=0\\\Rightarrow m_1c\Delta T_1=-m_2c\Delta T_2\\\Rightarrow m_2=-\dfrac{m_1\Delta T_1}{\Delta T_2}\\\Rightarrow m_2=-\dfrac{90(37.08-22.08)}{37.08-55.08}\\\Rightarrow m_2=75\ \text{g}\)

The mass of water to be added to reach the desired temperature is 75 g.

aC2H6 + bCO2 + cH2O → dC2H5OH The balanced equation for the reaction is given as; 6C2H6 + 2CO2 + 3H2O → 7C2H5OH, Check! Oxygen  Product = 7 Carbon Reactant = 6 * 2  +  2  = 14 Product = 7 * 2 =14 Hydrogen d = 7.

The manner that chemical equations are written ensures that almost all of the molecules are visible.Each oxygen molecule contains two oxygen atoms, which is why the symbol for it is [2].Recall that only two oxygen atoms make up each diatomic oxygen molecule that we breathe.

Oxidation processes, addition reactions, substitution reactions, and combustion reactions are the four basic types of reactions in which carbon is primarily involved.When carbon burns with oxygen present, heat and light are produced.

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Answer

Two constitutional isomers having the formula C3H6O with two different functional groups are :

1. Propanone, the functional group is carbonyl group –C=O, and

2. Methoxymethane, (also called methyl ether), the functional group is ether, –O–.

Their constitutional isomers are shown below: