Ai +O2 =Ai2O3 how many atoms of oxygen exist in this product

Based on the stoichiometry of the reaction, 156.114 g of CuNO3 are required to produce 88.0 grams of aluminum nitrate, Al(NO3)3.

The stoichiometry of a reaction is the molar ratio in which reactants combine to form products.

The stoichiometry of the reaction shows that 6 moles of copper (i) nitrate produces 2 moles of aluminium nitrate.

molar mass of Copper(I) nitrate, CuNO3 = 126 g

molar mass of aluminum nitrate, Al(NO3)3 = 213 g

88.0 g of aluminum nitrate, Al(NO3)3 = 88.0/213 moles = 0.413 moles

0.413 moles of Al(NO3)3 will be produced by 0.413 ×6/3 = 1.239 moles of CuNO3

Mass of 1.239 moles of CuNO3 = 1.239 × 126 = 156.114 g of CuNO3

Therefore, 156.114 g of CuNO3 are required to produce 88.0 grams of aluminum nitrate, Al(NO3)3.

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Therefore, 156.114 g of CuNO3

Answer: A chemical symbol is a one- or two-letter designation of an element. Compounds are combinations of two or more elements. A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements.

Answer:

gguhg

Explanation:

no te es caso drama me están muy una las y y que las te

Lead levels in plankton and algae are high, mostly as a result of environmental pollution brought on by human activity. While it is true that some brown algae species have the ability to accumulate heavy metals like lead.

Plankton and algae have high levels of lead, mostly as a result of environmental contamination brought on by human activities including mining, industrial operations, and the burning of fossil fuels.

Due to the fact that plankton and algae take up trace quantities of lead from the surrounding water, their tissues contain greater concentrations of the metal.

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6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.

Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.

Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:

(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))

The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:

(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol

Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.

Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.

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Answer:

0.93 M

Step-by-step Explanation:

First, we have to calculate the molar mass (MM) of ZnSO₄ by using the molar mass of each chemical element:

MM(ZnSO₄) = 65.4 g/mol Zn + 32 g/mol S + (16 g/mol x 4) = 161.4 g/mol

Then, we divide the mass of ZnSO₄ into its molar mass to obtain the number of moles:

moles ZnSO₄ = mass/MM = 150 g/(161.4 g/mol)= 0.93 mol

Since the molarity of a solution expresses the number of moles of solute per liter of solution, we calculate the molarity (M) as follows:

M = moles ZnSO₄/1 L =  0.93 mol/1 L = 0.93 M

1. The hydronium ion concentration [H₃O⁺] is 4.05×10⁻⁸ M

2. The hydroxide ion concentration [OH⁻] is 1.14×10⁻⁶ M

3. The hydroxide ion concentration [OH⁻] is 1.53×10⁻¹¹ M

4. Solution B is basic

1. How do I determine the value of [H₃O⁺]?

We can obtain the value of [H₃O⁺] as follow:

[H₃O⁺] × [OH⁻] = 10¯¹⁴

Divide both sides by [OH⁻]

[H₃O⁺] = 10¯¹⁴ / [OH⁻]

[H₃O⁺] = 10¯¹⁴ / 2.47×10⁻⁷

[H₃O⁺] = 4.05×10⁻⁸ M

2. How do I determine the value of [OH⁻]?

The value of the hydroxide ion concentration [OH⁻] can be obtained as follow:

[H₃O⁺] × [OH⁻] = 10¯¹⁴

8.81×10⁻⁹ × [OH⁻] = 10¯¹⁴

Divide both side by 8.81×10⁻⁹

[OH⁻] = 10¯¹⁴ / 8.81×10⁻⁹

[OH⁻] = 1.14×10⁻⁶ M

3. How do I determine the value of [OH⁻]?

The value of the hydroxide ion concentration [OH⁻] can be obtained as follow:

[H₃O⁺] × [OH⁻] = 10¯¹⁴

6.55×10⁻⁴ × [OH⁻] = 10¯¹⁴

Divide both side by 6.55×10⁻⁴

[OH⁻] = 10¯¹⁴ / 6.55×10⁻⁴

[OH⁻] = 1.53×10⁻¹¹ M

4.How do I determine which solution is basic?

To k now which solution is basic, we shall determine the pH of each solution. Details below:

pH = –Log [H₃O⁺]

pH = –Log 4.05×10⁻⁸

pH of solution A = 7.4

pH = –Log [H₃O⁺]

pH = –Log 8.81×10⁻⁹

pH of solution B = 8.1

pH = –Log [H₃O⁺]

pH = –Log 6.55×10⁻⁴

pH of solution C = 3.2

Summary:

We know that the pH scale is a scale that gives an understanding of the variation of the acidity / alkalinity of a solution.

The scale ranges from 0 to 14 indicating:

Thus, solution B is basic

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1100 mmHg

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Gas Laws

Stoichiometry

Step 1: Define

[Given] 1.5 atm

[Solve] mmHg

Step 2: Identify Conversions

1 atm = 760 mmHg

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

1140 mmHg ≈ 1100 mmHg

option a,b,c are correct.gather your belongings,turn off all hot plates & other heating apparatus, turn off all water these are options that must be done in case of a fire alarm or other evacuation .

To guarantee your safety, take prompt action when the fire alarm goes off. The fire alarm system was created and constructed to give you a head start so you may safely leave the building in an emergency.Never dismiss a warning or believe it to be fake or the outcome of a test.The nearest and safest exit and/or stairs must be used by everyone to leave the building.Never leave during a fire alarm activation in an elevator.Once outside, make your way away from the structure. Gather on the sidewalk of the building next door or across the street.The firefighters and fire engines will be working in front of the structure. Don't stand in their way as they enter the building.

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Answer:B) 1s 2s 2p 3s 3p 4s 3d

Explanation:

The ground state electron configuration shows how the electrons in the atomic orbitals of an atom are in their lowest , most stable energy arrangements and since Electrons must be filled following the Aufbau's principle(electrons fill lowest energy shells first)

Now, Titanium lies in period IV and  group 4 of the periodic table with 22 as its atomic number

Thus, the ground-state electron configuration of a neutral atom of titanium is 1s²2s²2p⁶3s²3p⁶4s²3d².  

Answer:

The longest-running show in Broadway history officially opened on January 26, 1988 and is still playing at the Majestic The Andrew Lloyd Webber musical won 7 1988 Tony Awards including Best Musical.

Explanation:

Brainliest plz?

Answer:

solar flair I think I'm not sure

Answer:

Explanation:

MnO₂(s) + 4 HCl(aq)  = MnCl₂(aq) + 2 H₂O(l) + Cl₂

87 g                                                                     22.4 x 10³ mL

volume of given chlorine gas at NTP or at 760 Torr and 273 K

=  175 x ( 273 + 25 ) x 715 / (273 x 760 )

= 179.71 mL

22.4 x 10³ mL of chlorine requires 87 g of MnO₂

179.4 mL of chlorine will require    87 x 179.4 / 22.4 x 10³ g

= 696.77 x 10⁻³ g

= 696.77 mg .

Answer: 3.44%

Explanation: try it for math

There are four (4) elements in the chemical formula given above.

Chemical formula in chemistry is a notation indicating the number of atoms of each element present in a compound.

The chemical formula of a substance shows the types and number of elements present in such substance.

According to this question, the chemical formula of a substance is given. The elements present in the compound based on their symbols are as follows:

Therefore, there are four elements in the substance.

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Answer:  505 grams K3PO4 x (3 x 222 grams HCI)/ (3 x K3PO4) = 555.5 grams KCl

Explanation:

Therefore, the volume of 1.20 M FeCl₂ required to obtain 0.850 moles of Cl⁻ ions is 0.354 L.

What is Moles?

One mole of a substance is defined as the amount of that substance that contains the same number of entities, such as atoms, molecules, or ions, as there are in 12 grams of carbon-12. This number, known as Avogadro's number, is approximately 6.022 x 10²³.

The molecular formula for FeCl₂ shows that it contains 2 chloride ions (Cl⁻) for each FeCl₂ molecule. Therefore, the number of moles of Cl⁻ ions is twice the number of moles of FeCl₂.

Given that we want to obtain 0.850 moles of Cl⁻ ions, we can calculate the number of moles of FeCl₂ required as follows:

moles of FeCl₂ = 0.850 moles Cl⁻ ions / 2 = 0.425 moles FeCl₂

To calculate the volume of 1.20 M FeCl₂ required to obtain 0.425 moles, we can use the formula:

moles = concentration (in M) x volume (in L)

Rearranging this formula to solve for volume, we get:

volume (in L) = moles / concentration (in M)

Substituting the values we have, we get:

volume (in L) = 0.425 moles / 1.20 M = 0.354 L

Therefore, the volume of 1.20 M FeCl₂ required to obtain 0.850 moles of Cl⁻ ions is 0.354 L.

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Answer:

Final pressure = 6 atm

Final volume = 1.1 L

Final temperature = 100 K

Explanation:

We are given;

Initial Pressure; P1 = 2 atm

Initial volume; V1 = 3.3 L

Initial temperature; T1 = 27° C + 273 = 300 K

Final pressure; P2 = 6 atm

We will use Boyles law to get the final volume.

P1V1 = P2V2

V2 = (P1 × V1)/P2

P2 = (2 × 3.3)/6

V2 = 1.1 L

We can use Charles law to find the final temperature.

V1/T1 = V2/T2

T2 = (V2 × T1)/V1

T2 = (1.1 × 300)/3.3

T2 = 100 K

Answer:

Magnesium loses it's two electrons and Oxygen gains two electrons. Magnesium is now a cation and Oxygen is now an anion. Both become stable.

Explanation:

The type of electron transfer which happens between the Mg and O atom is a complete transfer of electrons from the Mg atom to the O atom in an ionic bond.

The most electropositive electron usually is usually the donor while the most electronegative elements is the acceptor.

As evident in the case above;

Ultimately, an ionic bond is formed between the Mg and O atoms.

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The atomic number provides essential information about an element's identity, including the number of protons and its position in the periodic table, which helps determine its chemical behavior and properties.

The atomic number of an atom tells us:

The number of protons in the atom: The atomic number represents the unique identifier for an element and indicates the number of protons in the nucleus of an atom.

Each element has a distinct atomic number, and this number determines its place on the periodic table. For example, hydrogen has an atomic number of 1, which means it has one proton in its nucleus.

Which column the element is in on the periodic table: The atomic number determines the element's position in the periodic table. Elements are arranged in order of increasing atomic number, and each column (group) on the periodic table represents elements with similar chemical properties.

For instance, all elements in Group 1 have an atomic number of 1 and share similar characteristics, such as a tendency to lose one electron and form a +1 ion.

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Answer:

1. NaCl

2. NH4F

3. MgO

4.LiCl

5. KI

6. CaO

Explanation:

In that order

The abbreviated electron configuration for Al2+ is [Ne]3s2 3p1

since Al has 13 electrons :  [Ne]3s2 3p1

Al2+ means it has lost 2 electrons to become :  [Ne]3s1

Electronic configurations in chemistry can be describe as the way each electron move independently in an orbital, in an average field created by all other orbitals. which also means  the arrangement of electrons in orbitals around an atomic nucleus.

An electron in simple term is a negatively charged subatomic particle that binds together with protons and neutrons  to form an atom's nucleus. it can also be seen as a tiny particle of matter that is smaller than an atom and has a negative electrical charge in it.

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Answer:

i believe 223

Explanation:

T2 + 500k = 223 C*

Answer:

Al2O3 + 3Cl2 + 3 C → 2 AlCl3 + 3 CO

Explanation:

Answer:

4560.8km

Explanation:

2,850.5×1.6 = 4560.8km

Valence electrons are the electrons in the outermost shell of an atom and are responsible for chemical reactions. In a chemical reaction, atoms gain or lose electrons to achieve a stable electron configuration, which is known as the octet rule. The number of valence electrons an atom has determines its chemical reactivity and how it will bond with other atoms. For example, atoms with only a few valence electrons, such as hydrogen, are highly reactive and will readily form chemical bonds, while atoms with many valence electrons, such as noble gases, are relatively unreactive and do not easily form chemical bonds.

C. It becomes easier for molecules to escape.

Decreasing pressure causes a liquid to boil because it makes it simpler for molecules to escape.

Option A: Reducing the pressure does not increase the temperature or alter the liquid's volume (option B). Also, it doesn't force molecules out of the liquid (option D).

Instead, it lessens the pressure placed on the liquid's surface, which enables the liquid's molecules to more readily overcome their attraction to one another and transition into the gas phase.

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Answer:

Liquids take the shape of their containers because they are stuck together enough to not go flying off like gases but not so tightly that they stay in a stiff shape like solids do.

Explanation:

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