My cousin cant figure this out and neither me so maybe yall can help?

Answer:

ALPHA

Explanation:

There is a concentration of smelters, refineries, and foundries close to northern Belgium's copper mines because copper production is a bulk-reducing industry.

A bulk-reducing industry can be defined as a type of industry in which the raw materials (inputs) that are used for production weighs more than the finished good or final product.

This ultimately implies that, a bulk-reducing industry such as copper mines are established close to smelters, refineries, and foundries  because they make use of raw materials that weigh more than the finished good or final product.

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Based on the molarity or molar concentration of the salt solution formed, the strength of the salt formed is 0.286 M.

Salt strength of a solution is the concentration of that salt in a given volume of solution.

The concentration is given as the moles of the salt in a given volume of solution or molarity.

The moles of salt, NaCl formed when 5 litres of 1 M HCL is mixed with 2 litres of 1 M NaOH solution is given below:

1 mole of HCl reacts with 1 mole of NaOH to form 1 mole of NaCl.

2 litres of 1 M NaOH will react with 2 litres of 1 M HCl to form 2 litres of 1 M NaCl.

Moles of NaCl in 2 litres of 1 M solution = 2 × 1 = 2 moles of NaCl.

Total volume of mixture = 7 L

Molarity of NaCl = 2 moles / 7 litres= 0.286 M

Therefore, the strength of the salt formed is 0.286 M.

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Answer:

I belive its d, not fully sure tho

The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).

Partial pressure is the pressure of a gas in a mixture of gases.

Air is a mixture of gases with 78% N₂, 21% O₂, 1% Ar and other gases in trace amounts. The partial pressure of a gas is proportional to its percentage.

Let's calculate the partial pressures of these gases, considering that the atmospheric pressure is 760 mmHg.

pN₂ = 760 mmHg × 78% = 592.8 mmHg

pO₂ = 760 mmHg × 21% = 159.6 mmHg

pAr = 760 mmHg × 1% = 7.6 mmHg

The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).

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The sublevel would have electrons with the highest energy is 4p. Therefore, option D is correct.

The elementary electric charge of the electron is a negative one, making it a subatomic particle. Due to their lack of components or substructure, electrons, which are part of the lepton particle family's first generation, are typically regarded to be elementary particles.

The smallest elemental component of an atom, the electron has a negative charge. In a neutral atom, there are an equal number of protons and electrons. One electron and one proton are all that the hydrogen atom has.

The words electric and ion are combined to form the word electron. In turn, electron is derived from the suffix -on, which is currently used to describe other subatomic particles, such as a proton or neutron.

Thus, option D is correct.

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When the adhesin gene of Neisseria gonorrhoeae were mutated, the pathogen will be unable to attach to the host cells.

Pathogens may be defined as disease-causing agents. These are mostly microorganisms that infect the body of animals as well as humans.

Adhesin gene plays a very vital role in the attachment of pathogens to the host cells. It is the site where pathogen attack and attaches to host cells and then enters the body to play their function i.e. replication, a decline in the host immune system, and finally disease caused.

Therefore, when the adhesin gene of Neisseria gonorrhoeae were mutated, the pathogen will be unable to attach to the host cells.

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I answered all of them except 2 for you to do

Hope this helps :))

Answer:

Brain controls all body parts or processess like thinking and our movements or physical activity.

Explanation:

The control center of the body is the nervous system. It directs the other body systems. It controls, monitors, and coordinates all body parts and processes. It also receives information from the environment and makes specific body parts acts on that information. The nervous system is made up of brain, the spinal cord, and the nerves.

Hi brainly user! In the picture are the Parts of a brain. Actually, this is what I drew before ^^

Answer:

Explanation:

Answer:

to create or make energy Storage molecules

Answer:

C. gold beads and ornaments

Explanation:

Answer:

B: They are resources that are in abundant supply and can replenish themselves quickly.

Explanation:

A renewable resource is one that can be used repeatedly and does not run out because it is naturally replaced. Examples of renewable resources include solar, wind, hydro, geothermal, and biomass energy.

Answer: I don't know for sure but A and D seem like the best choices

Explanation:

The term hydration of an alkene is defined as the addition of water across a double bond.

The term hydration of an alkene is defined as the addition of water across a double bond. The process of hydration always yields an alcohol as -OH is aded to one of the carbon atoms in the doube bond.

The reaction commences with the attack of the -OH group by water and is completed by a proton from acid. The neutral organic product of the reaction of cycloheptene with water and sulfuric acid is shown in the image attached.

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Answer:

Your answer would be "Polyatomic anions."

I ask that you search to ensure there is not a similar question as it would save you time.

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I credit my answer to priyankatutor, his profile page is here:

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Answer:

The second option

Explanation:

The process of elimiation.

1. We know liquids dont have a definite shape, they will morph into whatever enviroment theyre in

3. Solids dont expand based on what container theyre in, they either dont fit or they do

4. We know that liquid expands, so we can also rule this one out.

Which leaves us with option 2 to be correct.

Answer:

V₂ = V₁ / T₁ * T₂ . If you prefer to set the final volume and want to estimate the resulting temperature, then the equation of Charles' law changes to: T2=T1/T1 multiplied by v^2.

Answer:

Bonding;lone

Explanation:

The molecule with the highest boiling point is  H₂Te, while the molecule with the highest vapor pressure is H₂S.

Boiling point of any substnace is inverely proportional to its vapour pressure, and boilig point is directly proportional to the molecular mass of the substance.

In the given compounds H₂S, H₂Se and H₂Te molecular mass of Te is high and of Sulphur (S) is small. So the boiling point of H₂Te is highest and of H₂S is low so the vapor pressure of H₂S is highest.

Hence, H₂Te has the highest boiling point and H₂S has the highest vapor pressure.

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Answer:

8

Explanation:

becus it just how that is ok kidhdod

Answer:12 cm^3 becoz as per Gay-Lussac law

H2+Cl2---. 2HCl thus ratio is 1:1:2

Explanation:

The volume of hydrogen gas that combines with 12 cm³ of chlorine gas to form hydrogen chloride is 12 cm³.

To calculate the volume of hydrogen gas that combines with 12 cm³ of chlorine gas to form hydrogen chloride, we need to determine the stoichiometric ratio of the reactants based on their balanced chemical equation. The balanced equation for the formation of hydrogen chloride (HCl) is:

H₂ + Cl₂ → 2HCl

From the balanced equation, we can see that one molecule of hydrogen gas (H₂) reacts with one molecule of chlorine gas (Cl₂) to form two molecules of hydrogen chloride (2HCl).

Given that the volume of chlorine gas is 12 cm³, the volume of hydrogen gas required to react with it can be calculated as follows:

Volume of hydrogen gas = (Volume of chlorine gas) / (Stoichiometric ratio of hydrogen in the balanced equation)

Volume of hydrogen gas = 12 cm³ / 1 = 12 cm³

Therefore, the volume of hydrogen gas that combines with 12 cm³ of chlorine gas to form hydrogen chloride is 12 cm³.

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Answer: See below

Explanation:

(i) 2AI + 3 NHANO3 → 3 N2+ 6 H2O + Al2O3  ΔH = -2030kJ

From stoichiometric coefiicients, it can be seen that:

When 2 moles of Al react, change in enthalpy =  -2030kJ

So, when 3.4 moles of Al react, change in enthalpy =  -(2030/2) x 3.4  kJ = -3451 kJ

Therefore, the change in enthalpy is -3451 kJ

(ii) The change in enthalpy is negative. This means heat is released during the reaction.

So the reaction is exothermic

The enthalpy change with the reaction of 3.4 moles of aluminum in the reaction is -3045 kJ. The reaction is exothermic in nature.

The reaction in which the energy is released and the value of change in enthalpy is negative is an exothermic reaction. The reaction in which the energy is absorbed with the positive value of change in enthalpy.

For a balanced chemical reaction, for 2 moles of Aluminum reaction, the change in enthalpy has been -2030 kJ. The change in enthalpy for the reaction of 3.4 moles of aluminum is given as:

[tex]\rm 2\;mol\;Al=-2030 \;kJ\\\\3.4\;mol\;Al=\dfrac{-2030}{2}\;\times\;3\;kJ\\\\ 3.4\;mol\;Al=-3045\;kJ[/tex]

The change in enthalpy for 3.4 moles of aluminum reaction is -3045 kJ. The reaction is exothermic in nature.

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Answer:

5=D

6=B

7=A

8=?????

1A= conduction

1B= radiation

1C= convection

3: C

4: A

Explanation:

2: The heat from the hot water is been transferred along the metal handle to the other end of the spoon by the process of CONDUCTION.

Answer:

An alkaline solution is another name for a solution that is basic. All alkali metals react readily with water to produce the metal hydroxide and hydrogen gas. The resulting solutions are basic.

An alkaline solution is another name for a solution that is base. All alkali metals react readily with water to produce the metal hydroxide and hydrogen gas. The resulting solutions are basic.

According to the Arrhenius concept, base is defined as a substance which yields hydroxyl ions on dissociation.These ions react with the hydrogen ions of acids to produce salt in an acid-base reaction.

Bases have a pH higher than seven as they yield hydroxyl ions on dissociation.They are soapy in touch and have a bitter taste.According to the Lowry-Bronsted concept, base is defined as a substance which accepts protons .Base react violently with acids to produce salts .Aqueous solutions of bases can be used to conduct electricity .They can also be used as indicators in acid-base titrations.

They are used in the manufacture of soaps,paper, bleaching powder.Calcium hydroxide ,a base is used to clean sulfur dioxide gas while magnesium hydroxide can be used as an antacid to cure acidity.

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When (S)-2-butanol is treated with tosyl chloride and pyridine, followed by exposure to bromide, (R)-2-bromobutane is formed.

A substance may undergo inversion of configuration during nucleophilic substitution when the leaving group is bulky such that attack must occcur at the reverse side.

Hence, when (S)-2-butanol is treated with tosyl chloride and pyridine, followed by exposure to bromide, (R)-2-bromobutane is formed.

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The molarity of sodium chloride solution containing 284 g of NaCl in 2.20 L os solution would be 2.21 mole/Liter

Recall that:

Molarity = mole/volume

Also, Mole = mass/molar mass

Thus:

Mole of 284 g NaCl = 284/58.44 = 4.86 moles

Volume of the solution = 2.20 L

Therefore, the molarity of the solution can be calculated as;

molarity = 4.86/2.20 = 2.21 mole/Liter

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