What ion will Magnesium form?

If someone who look up to does anything that makes you want to do something, this is known as direct pressure directly from the other person's mouth. The plan you use to accomplish the goal it your activity.

The Standard unit for pressures seems to be the pascal (Pa), which is equal to one newton / square meter (N/m2) of pressure is defined of surface. An object's pressure is inversely related to its force and proportional to both

Pressure is created by molecules moving quickly and crashing into the container's walls. The quantity and intensity of molecular collisions in a given region determine the pressure there.

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Answer:

An additional advantage of asexual reproduction is that colonization of new habitats may be easier when an individual does not need to find a mate to reproduce. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.

Explanation:

An organism has many benefits for having the ability to reproduce both sexually and asexually. The first of these benefits is that it doesn't have to find a mate in order to reproduce, so it can create offspring by itself, and enable the continuation of its' species.

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Answer:

through water

Explanation:

The following elements can be isolated by electrolysis of the aqueous salt :  Phosphorus from K3PO4 (aq).

Electrolysis is the method used to divide water into hydrogen and oxygen. An electrolyzer is a device where this process takes place.

In chemistry and production, the electrolysis method can be used to speed up a typically non-spontaneous chemical reaction. Electrolysis is significant from a business perspective as a phase in the electrolytic cell-based separation of elements from naturally existent sources like ores.

By introducing an electric current into a substance, electrolysis alters its chemical makeup. Depending on the substance, one electron is either lost or acquired during the chemical reaction (oxidation or reduction).

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Answer:

3.97e24

Explanation:

For every mol of any substance there are 6.02x10^23 molecules

so

6.6(6.02x10^23)= 3.97x10^24 Molecules of ZnO

Answer:

The answer is "Orion technology"

Explanation:

NASA tested that perhaps the abort system on the Biomechanical properties fires faster than that of the rocket, possibly costing colonists during launch or a crisis. It test is a significant step forward in Agency's plans again for the Artemis space mission, which will pave the way for human missions to The moon. NASA is building a humanoid spacecraft for long-range space missions for the first time in generations.  As just a result, they are beginning a new age of space travel. Orion would be used to transport the crew into space as a surveillance vehicle. Also, it helps astronauts to flights and ensures a safe return to orbit in the case of an emergency release.

Answer:

oRgiN

Explanation:

i jUST TOOK THE TEST

On adding 200g hydrochloric acid to excess calcium carbonate, the percent yield of carbon dioxide is equal to 82.84%.

200g of HCl was added to an excess amount of calcium carbonate to produce 100g of carbon dioxide along with water and calcium chloride. The reaction is written as:

CaCO₃ + 2HCl → H₂O + CO₂ + CaCl₂

Since calcium carbonate is excess, two moles of hydrochloric acid gives rise to one mole of carbon dioxide.

To calculate the percent yield, we can use stoichiometry,

The molar mass of hydrochloric acid = 36.46 g/mol

The molar mass of carbon dioxide = 44.01 g/mol

To calculate theoretical yield,

200g HCl/1 × 1 mole HCl/36.46g HCl × 1 mol CO₂ /2mol HCl × 44.01 mol CO₂/ 1 mole CO₂

= 120.707 g

To calculate the percent yield,

The amount of CO₂ produced = 100g

Dividing 100 by the theoretical yield

=  100/120.707 = 0.8284

Now multiplying the value by 100

= 0.8284 × 100 = 82.84 %

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A certain solution contains 4.3 grams of salt per liter. the  salt is there in 11 liters of the solution is 47.3 grams.

The solution contains = 4.3 grams salt per liters

in one liters the solution contains = 4.3 grams of the salt.

the salt in the 11 liters = ?

so, in one liter in contains = 4.3 grams

in 11 liters it will contains = 4.3 × 11

                                         = 47.3 g

the round off answer to the solution is 47.3 g.

Thus the amount of the salt in the 11 Liters of the solution is the 47.3 g.

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Answer: It is a Covalent Bond

Explanation:

In a chlorine molecule, the atoms bonded by a covalent bond as a chlorine atom needs one electron to complete its octet and shares one electron with another chlorine atom.

Answer:

mono covalent bonds

Explanation:

Cl shares 1 electron with another Cl atom

so it makes Cl2 a mono covalent compound

An empty bottle has volume of 2 L at room temperature 25°C . If we put it in the freezer (-4°C), the new volume will be 1.8L.

According to Charles' law, " the volume of a given amount of gas held at constant pressure is directly proportional to the kelvin temperature". The equation is represented as:

V₁/T₁ = V₂/T₂

This means, with increase in temperature, volume will also increase and vice versa.

According to question,

V₁ = 2.0 L

T₁ = 25°C = (25+273)K = 298 K

T₂ = -4°C = (-4 + 273)K = 269 K

Using Charles' law equation,

V₁/T₁ = V₂/T₂

⇒V₂ = V₁×T₂ / T₁

⇒V₂ = 2L × 269 K/298K

⇒V₂ = 1.8 L

Thus, the new volume when the bottle is put in a freezer (-4°C ) is 1.8 L

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There are 6.022 x 10^23 atoms in 2 moles of oxygen atoms. There are 2 x 6.022 x 10^23 atoms in 2 moles of oxygen molecules.

Molecules are the smallest particles of a substance that can exist on its own and retain the chemical properties of that substance. Molecules are composed of atoms that are held together by chemical bonds. Molecules can be composed of atoms of the same element, such as oxygen molecules that are composed of two oxygen atoms, or of atoms of different elements, such as water molecules composed of two hydrogen atoms and one oxygen atom.

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Explanation:

I don't think a decomposer and detritvore would compete with each other because decomposers job is to break down dead, organic materials and detritvores feed on dead organisms

A conjugate base solution with a pH between 8 and 10 has little buffer capacity, however at higher pHs, the strong base's presence begins to matter more.

Because of the large concentration of H + cations, a pure acetic acid solution with a pH below 3 already has a pH that is resistant to changes. This is because the concentration of the capacity is so high that it is unaffected by changes in the equilibrium of the solution brought on by the concentration of other ions. Why is a buffer more effective if its pKa is close to the pH? Why does a buffer function best when pH and pKa are equal? Why does increasing the pH by a basic or an acid.

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Prevent the spread of dusts and vapors.Neutralize acids and bases, if feasible. Manage the spread of the liquid.absorb the liquid.Gather and incorporate the cleanup residues. Get rid of the wastes. Decontaminate the area and affected system.

Chemical spills are the uncontrolled launch of a dangerous chemical, both as a strong, liquid or a gas. these spills need to be minimized as tons as possible.

Chemical spills usually result from the dangerous handling of chemical compounds, incorrect chemical storage, chemical garage tank ruptures, incorrect containers for chemical disposal, and failure to eliminate chemical substances in a well timed way.

There are sorts of spills that you can run into: simple Chemical Spills and complex Chemical Spills. easy Chemical Spills are small, confined, and present minimal dangers.

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Answer:

the moles of mercury are nHg = 65/201

HgO --------> Hg + 1/2O2

65/201 65/201

=> the moles of HgO are 65/201 mol

Answer: Scientific notation- [tex]1.51 x 10^{-1}[/tex]

Explanation: I got this by moving the decimal, so that there is one non-zero digit to the left of that decimal point. Tip- The number of decimal places you move will be the exponent on the 10.

Moved right- Negative

Moved left- Positive

Yes carbon dioxide and oxygen are inversely related to each other.

Bohr effect is a result of the effect of carbon dioxide has on hemoglobin affinity for oxygen. Bohr's effect describes the hemoglobin's lower affinity for oxygen secondary to increases in the partial pressure of the carbon dioxide and decreases the pH of blood. This lower affinity, in turn, enhances the unloading of oxygen into the tissues to meet the oxygen demand of the tissue.

Thus, the relationship between CO₂ and hemoglobin affinity for oxygen can be described as an inverse relationship meaning when one goes one way, and the other goes the other way.

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The order of Sy2 reactivity for the sets of compounds you provided would be:

Compound B (H2C=CHCH2CI)

Compound C (CI)

Compound A (CI)

This is because Compound B has the greatest electron-donating ability due to the presence of the alkyl group attached to the carbon bearing the halogen, making it the most nucleophilic and therefore the most reactive in an Sy2 reaction. Compound C is less reactive than B because it lacks the electron-donating alkyl group, and Compound A is the least reactive due to the lack of electron-donating groups.The term "Sy2 reactivity" refers to the reactivity of a compound in a nucleophilic substitution reaction where the leaving group is displaced by a nucleophile. The abbreviation "Sy" stands for "substitution" and the subscript "2" indicates that the reaction is bimolecular, meaning that the rate of the reaction is dependent on the concentrations of both the substrate and the nucleophile.

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The moles of ammonia needed to produce 1.3 mole of water is 0.84 mol.

balance chemical equation for the reaction

[tex]4NH_{3}+5O_{2}- > 4NO +6H_{2}O[/tex]

In chemistry, stoichiometry is the measurement of the ratios in which different substances or elements interact. The laws of conservation of mass, energy, and weights or volumes serve as the foundation for the rules used to determine stoichiometric relationships.

stoichiometric moles of ammonia reacting = [tex]\frac{moles}{stoichiometry}[/tex]

stoichiometric moles of water reacting = [tex]\frac{1.3}{6} =0.21[/tex]

0.21 stoichiometric moles of water is given by 0.21 stoichiometric moles of water

so moles of ammonia will form = stoichiometric moles * stoichiometry

moles of ammonia will form = 0.21 * 4  = 0.84 mol

so moles of ammonia produced by reaction = 0.84 mol

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Answer:

Explanation:

The empirical formula for this compound containing 59.94 % carbon, 13.44 % hydrogen, and 26.62 % oxygen by mass is C3H8CO.

Given the % of carbon = 59.94%

The % of hydrogen = 13.44%

The % of oxygen = 26.62%

If a percentage is provided, we will assume that the entire mass is 100 grams. As a result, each element's mass is equal to the percentage indicated. Then

the mass of carbon (m1) = 59.94g

The mass of hydrogen (m2) = 13.44g

The mass of oxygen (m3) = 26.62g

We know the molar mass of C = 12 g/mole

The Molar mass of H = 1 g/mole

The Molar mass of O = 16 g/mole

The moles of carbon = 59.94/12 = 4.995

The moles of hydrogen = 13.44/1 = 13.44

The moles of oxygen = 26.62/16 = 1.664

Divide each mole value by the lowest computed mole number to get the mole ratio.

For C = 4.995/1.664 = 3 , For H = 13.44/1.664 = 8 and For O = 1.664/1.664 = 1. Then the empirical formula = C3H8CO

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Marie Curie is credited with the discovery of radium. In 1898, she and her husband Pierre Curie discovered the element while experimenting with pitchblende, an ore containing uranium. They isolated a new substance, which they named radium, after the Latin word for ray.

Uranium is a naturally occurring element that is found in rocks and soil. It is a dense, silvery-white metal that has the highest atomic weight of all elements. Uranium is slightly radioactive and produces energy when it undergoes nuclear fission. It is an important source of energy generation and is used in nuclear reactors to produce electricity. Uranium also has a variety of other uses, such as in military applications, medical imaging, and industrial processes. It is a nonrenewable resource, and its supply is limited. Due to its radioactive nature, uranium must be handled with caution and special safety precautions must be taken to protect against the radiation it

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Answer: its D-  Marie Curie

Explanation: I got it right on the test! hope this helps :)

Specific heat is the amount of heat required to raise the temperature of a material by 1°c per mass

Specific heat is defined as the amount of heat energy required to elevate the temperature of a material by  1°C  per unit mass.

It is a material's physical attribute. The joule per kelvin per kilogram (J/K/Kg) is the standard international measurement of heat capacity.

If a substance has a high specific heat, it simply implies that it will take a long time to heat up, but it will also take a long time to cool down once heated. Water has the highest specific heat value.

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Answer:

i) Iron metal is obtained

ii) Fe2O3 + 3CO → 2Fe + 3CO2

iii) CO is the reducing agent

Explanation:

i) When carbon monoxide is passed over iron III oxide, iron metal is obtained

ii) The equation of the reaction is;

Fe2O3 + 3CO → 2Fe + 3CO2

iii) The reaction is a redox reaction. CO acts as the reducing agent while Fe2O3 acts as the oxidizing agent. We know that CO is the reducing agent because its oxidation number increased from left to right. Recall that the oxidation number of the reducing agent increases from left to right in a redox reaction

D. methane, butane and propane

Propane and butane are both types of alkane hydrocarbons with relatively low boiling points, which allows them to be easily converted to a liquid form at relatively low pressures. This makes them easy to transport and store. Methane, ethane, and hexane are also alkane hydrocarbons, but they are not typically found in large amounts in LPG.

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Answer:

False

Explanation:

They do cause harm.

Taking into account the reaction stoichiometry, an amount of 84 moles of H₂ are needed to react with 28 moles of nitrogen.

In first place, the balanced reaction is:

N₂ + 3 H₂  → 2 NH₃

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

It can be applied the rule of three: If by reaction stoichiometry 1 mole of N₂ react with 3 moles of H₂, 28 moles of N₂ react with how many moles of H₂?

moles of H₂= (28 moles of N₂×3 moles of H₂)÷1 mole of N₂

moles of H₂= 84 moles

Finally, 84 moles of H₂ reacted.

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Balanced net ionic equation for a neutralization reaction that results in the formation of sodium fluoride is Na+ + F- → NaF

A neutralization reaction is a chemical reaction that occurs when an acid and a base react to form a salt and water. This type of reaction is exothermic, meaning that it releases energy in the form of heat. During a neutralization reaction, hydrogen ions from the acid are neutralized by the hydroxide ions from the base. The byproduct of this reaction is a salt and water. The salt produced depends on the acid and base used in the reaction, and the pH of the solution is neutralized to 7.0.

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Answer:

True

hope this helps

have a good day :)

Explanation:

Answer:

True

Explanation:

A study of the spectrum of the sun led to the discovery of helium.

The reactant in the synthesis of the alkyl lithium reagent shown is an alkyl halide, likely represented by the structure //\Li + LiBr. The reagent used to synthesize the alkyl lithium reagent is lithium metal, represented by the structure O 2 Li.

The solvent used in the synthesis is not specified in the given information. It's common to use ethers such as diethyl ether or tetrahydrofuran as solvents in the synthesis of alkyl lithium reagents.It's worth noting that the structure O CH3Li is showing a methyl lithium reagent, which is a different compound than the alkyl lithium reagent shown in the first part of the question, and the structure LiOH is showing Lithium hydroxide which is not involve in the synthesis of alkyl lithium reagents.

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