Can I get help in #5 ?

C. Evaluating the results.

Explanation:

I hope it'll help you...

Answer: 0% No offspring can display the recessive trait

just did the test

The correct order of the atmospheric layers from bottom to top are

Water from a well is more likely to be clean to drink as compared to the water from river.

Source water refers to bodies of water that contribute water to public drinking water sources and private wells (such as rivers, streams, lakes, reservoirs, springs, and ground water).

Water which came from underground sources are clean and well to drink as no impurities were present in that, whereas the water from rivers are not that much of clean as many human activities make them impure.

Hence water from well is clean to drink.

To know more about sources of water, visit the below link:

https://brainly.com/question/898979

#SPJ4

Answer:

.475 M

Explanation:

USe periodic table to find mole weight of HCl

   H = 1.008     Cl = 35.45      total   36.458 gm / mole

Find the numebr of moles    in 52 gm

 52 gm / ( 36.458 gm / mole) = 1.426 moles

1.426 moles / 3 L = .475 M

The required amount of KClO₃ to prepare a saturated solution is 48 grams.

The ability of a material, the solute, to create a solution with another substance, the solvent, is known as solubility.

Given graph is plotted between the temperature and solubility of the substance at 100g of water, so for the given points calculation will be:

x = (40)(68) / (100) = 27.2g

Hence, we require almost 48g of KClO₃ to prepare a saturated solution of KClO₃.

To know more about solubility, visit the below link:

https://brainly.com/question/16903071

#SPJ1

Answer:

Natural Springs answer.

Explanation:

Actually valid reason for why the dam was built

Answer:

Explanation:

The number of mole of HCl required to neutralize all 0.05 mole of Ca(OH)₂ is 0.1 mole

Ca(OH)₂ + 2HCl —> CaCl₂ + 2H₂O

From the balanced equation above,

1 mole of Ca(OH)₂ required 2 moles of HCl

From the balanced equation above,

1 mole of Ca(OH)₂ required 2 moles of HCl

Therefore,

0.05 mole of Ca(OH)₂ will require = 0.05 × 2 = 0.1 mole of HCl

Thus, 0.1 mole of HCl is needed for the reaction

Learn more about stoichiometry:

https://brainly.com/question/14735801

#SPJ1

Answer:

A

Explanation:

l took the test

Answer:

The atomic weight of an element represents the ratio of the average mass of atoms of a chemical element.

9.38ml of a 14.0 M solution of sulfurous acid is required to make 175 mL of a 0.750 M solution.

Molarity (M) is the amount of a substance in a certain volume of solution.

Molarity is defined as the moles of a solute per liters of a solution.

Molarity is also known as the molar concentration of a solution.

The units of molarity are M or mol/L.

M = moles solute / liters solution

We know that

M₁V₁ = M₂V₂

It is given that M₁ = 14 M

V₁ = ?

M₂= 0.75 M

V₂= 175 ml

so

14 * V₁ = 0.75 * 175

V₁ = 9.38 ml.

Therefore 9.38ml of a 14.0 M solution of sulfurous acid is required to make 175 mL of a 0.750 M solution.

To know more about Molarity

https://brainly.com/question/2817451

#SPJ1

Answer: polymers

Explanation:

Polymers are huge natural molecules are connected with small natural molecules 

When we convert 5000 grams of hydrogen into water, the mass of the water obtained is 45000 g

2H₂ + O₂ —> 2H₂O

Molar mass of H₂ = 2 g/mol

Mass of H₂ from the balanced equation = 2 × 2 = 4 g

Molar mass of H₂O = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

4 g of H₂ reacted to produce 36 g of H₂O

From the balanced equation above,

4 g of H₂ reacted to produce 36 g of H₂O

Therefore,

5000 g of H₂ will react to produce = (5000 × 36) / 4 = 45000 g of H₂O

Thus, 5000 g of H₂ is equivalent to 45000 g of H₂O

Learn more about stoichiometry:

https://brainly.com/question/14735801

#SPJ1

Commercial agriculture can lead to water-quality problems because water can be used for irrigation and washing chemical products.

The term commercial agriculture makes reference to the techniques to produce high yields in extensive crops.

Commercial agriculture may lead to contamination problems due to the use of herbicides and pesticides.

In conclusion, commercial agriculture can often lead to water-quality problems because water can be used for irrigation and washing chemical products.

Learn more about commercial agriculture here:

https://brainly.com/question/1096916

#SPJ1

The mass of NaOH that is necessary to neutralize 8.90 mol of HCl is 356 grams.

Mass of any substance will be calculated from moles by using the below equation as:

n = W/M, where

W = required mass

M = molar mass

Neutralization reaction will be:

NaOH + HCl → NaCl + H₂O

From the stoichiometry it is clear that 1 mole of NaOH is required to neutralize 1 mole of HCl, so that 8.90 moles of NaOH is needed.

Mass of 8.9 moles of NaOH = (8.9mol)(40g/mol) = 356g

Hence required mass of NaOH is 356 grams.

To know more about mass & moles, visit the below link:
https://brainly.com/question/24639749

Answer:

When ions move over a polar cap of Earth, the changing shape of the magnetic field lines bends the drift path induced by the electric field normal to the magnetic field. The centrifugal acceleration associated with this bending shoots the ions away from the Earth along the magnetic field lines

Explanation:

Answer:

d

Explanation:

the outer planets are uranus neptune jupiter and saturn also the sun all way bigger than the earth

The correct statements which explain why rocks weather at different rates are: A. Softer, porous, or more permeable rocks weather faster than harder rocks. B. Rocks in warmer climates weather faster than rocks in colder climates. and D. The more water present, the faster the rate of weathering. Hence , Option A , B and D are correct

Weathering can be defined as both the physical and chemical breakdown of a rock into smaller fragments (pieces) called sediment.

Generally, rocks weather at different rates based on the following reasons:

Some of the natural phenomenon that influences rock cycle include the following;

Therefore , The correct statements which explain why rocks weather at different rates are: A. Softer, porous, or more permeable rocks weather faster than harder rocks. B. Rocks in warmer climates weather faster than rocks in colder climates. and D. The more water present, the faster the rate of weathering. Hence , Option A , B and D are correct

Read more about rocks here :

brainly.com/question/21975453

#SPJ2

Answer: A., B., D.

Explanation:

Answer:

c

Explanation:

i dont have one

Answer:

Elements were formed from a supernova in space that was so powerful, it gave us almost all the elements we have today.

The molar solubility of AuCl₃ in a 0.013 M solution of magnesium chloride is 1.81×10⁻²⁸M.

The solubility product constant, Ksp, is the equilibrium constant for a solid substance dissolving in an aqueous solution. And for the AuCl₃, Ksp will be written as: Ksp = [Au³⁺][Cl⁻]³

Let the solubility of the AuCl₃ in 0.013M solution of magnesium chloride is x, of Au³⁺ is x and of Cl⁻ is 3x. But we know that MgCl₂ is a strong electrolyte and it completely dissociates into its ions and will produce 2 moles of chloride ions. For this solution let we consider the volume is 1 liter then the concentration of chloride ions in MgCl₂ is 2(0.013)=0.026M.

So, in MgCl₂ solution concentration of Cl⁻ becomes = 3x + 0.026.

Value of Ksp for AuCl₃ = 3.2 × 10⁻²³

On putting all values on the Ksp equation, we get

Ksp = (x)(3x + 0.026)³

Value of 3x is negligible as compared to the 0.026, so the equation becomes

3.2 × 10⁻²³ = (x)(0.026)³

x = 3.2×10⁻²³ / (0.026)³

x = 1.81×10⁻²⁸M

Hence the molar solubility of AuCl₃ in 0.010M MgCl₂ is 1.81×10⁻²⁸M.

To know more about molar solubility, visit the below link:

brainly.com/question/27308068

#SPJ4

Answer: 0.7 M

Explanation:

molarity = (moles of solute)/(liters of solution) = 1.75/2.5 = 0.7 M

Answer:

See below ~

Explanation:

Sea water has a high amount of salt present in it. The density of salt is higher than that of water. It dissolves in water, thereby increasing its density. Hence, this is why sea water has a higher density than tap water.

Answer:

sea water have high density and also they're moving from one side to another more than tap water

tap water have less density and also they're not moving ever they ain't move than sea water

The structure of 3-ethyl-2 fluroheptane is attached. The chemical formula of the compound is C9H19F.

It is an organic compound which has one pair of hydrogen and acceptor and zero hydrogen bond donor.

The chemical formula of the compound is [tex]C_9H_1_9_F.[/tex]

Thus, the structure of 3-ethyl-2 fluroheptane is attached. The chemical formula of the compound is C9H19F.

Learn more about 3-ethyl-2 fluroheptane

https://brainly.com/question/14754676

#SPJ1

Answer:

≈ 76.16%

Explanation:

What is Percent Yield? In chemistry, percent yield is the percent ratio of the weight of the product obtained to the theoretical yield. We calculate the percent yield by dividing the experimental yield by the theoretical yield and multiplying the result by 100 to express the final answer in %.

[tex]\frac{actual}{theoretical} (100)=percentyield[/tex]  ⇒  [tex]\frac{278}{365} (100)=76.1643835616[/tex]

≈ 76.16%

hope this helped :)

Answer:

76.16%

Explanation:

I know answer is correct because I got the exact same question :)

Answer:

2 groups

Explanation:

The molecule 3, 3-diethylpentane has 2 ethyl groups because the prefix di- means that there are 2 homogeneous substituent groups present in the molecule.