Select the atom that will attract the electron pair (:) more strongly (the atom with the greater electronegativity)


HELP PLEASE

The molarity of the HCl solution needed to neutralize 28.6 mL of a 0.175 M NaOH solution is 0.2002 M

We'll begin by writing the balanced equation for the reaction. This is given below:

HCl + NaOH —> NaCl + H₂O

From the balanced equation above,

The mole ratio of the acid, HCl (nA) = 1

The mole ratio of the base, NaOH (nB) = 1

Volume of base, NaOH (Vb) = 28.6 mL

Molarity of base, NaOH (Mb) = 0.175 M

Volume of acid, HCl (Va) = 25 mL

The molarity of the acid, HCl can be obtained as follow:

MaVa / MbVb = nA / nB

(Ma × 25) / (0.175 × 28.6) = 1

(Ma × 25) / 5.005 = 1

Cross multiply

Ma × 25 = 5.005

Divide both side by 25

Ma = 5.005 / 25

Therefore, the molarity of the acid, HCl needed for the reaction is 0.2002 M

Learn more: https://brainly.com/question/25573711

Answer: 2Al+6HCl→2AlCl3+3H22Al+6HCl → 2AlCl3 + 3H2

Explanation:

Answer:

The answer is Elastic Potential Energy

Answer:

Chlorophyll makes plants green.

Enzymes are responsible for dictating what chemical changes happen and when, so thus they control the life process of the cells in our bodies.

The cell wall is what gives a plant cell it's distinct shape (animal cells don't have cell walls btw).

Intracellular fluid, or cytosol, is the fluids stored in the Intracellular compartment.

The cell membrane is the barrier between everything inside the cell, and everything else outside of it. It protects the contents of the cell from harm and releases toxins and other waste from it. The cell membrane is basically like the gate keeper of the cell.

Explanation:

Hope this helps, I tried :)

Answer:

The brick house will best resist damage from a tsunami, and the straw house will suffer the most damage from a tsunami. I predict these reasons because brick has a stronger material than the rest of the houses, while the straw house has the weakest material than the rest of the houses. No, I do not think any of the houses can survive a massive tsunami because if the tsunami was 22 feet tall, the brick house would become damaged due to the lack of support. And, the other houses can't take a tsunami higher than 10 feet. The brick house can only take tsunamis less than 20 feet.

Explanation:

Try that

Answer:

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.

Explanation:

Elements of same group have same number of valence electrons and similar physical and chemical properties.

A periodic table is classified into different columns and rows. The vertical columns in the table are called groups and the horizontal rows are called periods.

From left to right, the atomic number of elements increases by one and atomic size increases.  Down a group, the number of electrons and atomic size as well increases.

Elements of same groups have same number of outer electrons or valence electrons. They show similarities in chemical and physical properties.

For example,  lithium and sodium are in the first group. They both have one valence electron.

Find more on groups in periodic table :

https://brainly.com/question/7373020

#SPJ6

Answer:

Asexual reproduction does not involve sex cells or fertilisation . Only one parent is required, unlike sexual reproduction which needs two parents. Since there is only one parent, there is no fusion of gametes and no mixing of genetic information.

The main difference between sexual and asexual reproduction is that sexual reproduction involves the fusion of gametes, while asexual reproduction does not.

In sexual reproduction, offspring are produced through the fusion of gametes (reproductive cells) from two parent organisms. This fusion, known as fertilization, results in offspring that inherit genetic material from both parents. This genetic recombination introduces variation in the offspring, promoting genetic diversity within a population.

In contrast, asexual reproduction involves the production of offspring without the involvement of gametes or the fusion of genetic material from two parents. A single parent organism reproduces by generating genetically identical or near-identical offspring through various methods such as budding, fragmentation, or binary fission. Asexual reproduction typically leads to offspring that are genetically identical to the parent, lacking the genetic diversity observed in sexual reproduction.

Learn more about reproduction, here:

https://brainly.com/question/18653168

#SPJ6

Answer:

liquid no not a solid

Explanation:

When you put the substance in a 25 mL beaker. then the state of matter is solid, appearance and texture are powdered and crystalline structure is not solid(powder).

The term "crystalline structure" refers to the arrangement of atoms, ions, or molecules in a crystalline solid. A crystalline solid is a type of material where the constituent particles are arranged in a regular, repeating pattern. This regular arrangement results in a characteristic geometric shape for the crystals. Examples of crystalline solids include salt, sugar, and diamond.

On the other hand, the term "state of matter" refers to the physical form in which matter exists. There are three primary states of matter: solid, liquid, and gas.

Solids have a definite shape and volume and their constituent particles are held tightly together by strong intermolecular forces.

Liquids have a definite volume but no definite shape, and their constituent particles are held together by weaker intermolecular forces.

Gases have no definite shape or volume, and their constituent particles are far apart and move freely.

Other states of matter, such as plasma and Bose-Einstein condensate, also exist but they are less common in everyday life.

Therefore, the state of matter: is solid, its appearance and texture: are powdered, and the crystalline structure: is not solid.

To learn more about states of matter click:

https://brainly.com/question/9402776

#SPJ7

Answer:

1. southwestern sea otters include entrapment or entanglement in fishing gear, oil spills, and climate change.

2. Reduce, reuse, and recycle whenever you can.

Dispose of hazardous wastes properly.

Grow a garden. The roots take in water, reducing the amount of runoff.

Use nontoxic household cleaning products.

Don’t litter or dump materials into storm drains.

Pick up after your pets.

Use less water.

Purchase sustainable, recycled, biodegradable goods.

Volunteer to help or create a beach clean up.

Get your car oil changed to prevent leaks.

Donate to the California Sea Otter Fund.

Learn more about ocean issues and share your knowledge!

3. They eat sea urchins and other invertebrates that graze on giant kelp. Without sea otters, these grazing animals can destroy kelp forests and consequently the wide diversity of animals that depend upon kelp habitat for survival.

4. sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. Without sea otters, sea urchins can overpopulate the sea floor and devour the kelp forests that provide cover and food for many other marine animals.

5. haven’t found anything on that

Answer:

Threats to southern sea otters includes: 1.entrapment or entanglement in fishing gear, 2.oil spills, and climate change

Yeah something has been proposed to save the species which are:

1.Reduce, reuse, and recycle whenever you can.

2.Dispose of hazardous wastes properly.

3.Use nontoxic household cleaning products.

4.Don't litter or dump materials into storm drains

5.Purchase sustainable, recycled, biodegradable goods.

6. Range expansion is key to southern sea otter recovery and to the restoration of ecosystems in which sea otters were once the keystone species.

Southern sea otters play a critical role as a keystone species.

Without sea otters, sea urchins can overpopulate the sea floor and devour the kelp forests that provide cover and food for many other marine animals. Sea otters help ecosystems capture carbon from the atmosphere and store it as biomass and deep-sea detritus, preventing it from being converted back to carbon dioxide and contributing to climate change.

Sea Otter Fund: $3 Million and Counting

Hope this helps pls mark me Branliest

Answer:

Ca(2+)

Explanation:

Sodium (Na) only have one valence electron and will lose it in order to gain a full octet. There will be an unbalance of electrons and protons where there are more protons there electrons. The correct ion formula for sodium is Na (1+).

Nitrogen has 5 valence electrons and will gain three more to gain a full octet. There will be an unbalance where there are more electrons then protons. Nitrogen will form the ion N (3-).

Calcium has two valence electrons and will lose them in order to gain a full octet. There will be an unbalance where there are more protons then electrons. Calcium will form the ion Ca 2+

Therefore, Ca2+ is the ion with the correct charge.

Answer:

2N2 + 3O2 –2N2O3 this what I got balancing though

Answer:

May be third one because of the formation of H2(hydrogen)on the product side.

The equation that shows the valued combustion reaction is [tex]C_2H_4 + 3O_2 \rightarrow 2CO_2 + 2H_2O[/tex]

The following information should be considered:

Learn more: brainly.com/question/16911495

Answer:

94.155 Moles

Explanation:

Since you are given atoms, to get to moles you need to use the formula I used below. Pretty simple, just plug and chug. Work can be found below.

Hope this helps! :^)

94. 125 moles are present in 5.67x10^25 atoms of Carbon (C).

The mole is a unit of measurement that is comparable to well-known units like pair, dozen, bulk, etc. It offers a precise count of atoms or molecules in a large sample of materials.

The amount of substance that has the same number of discrete entities (atoms, molecules, ions, etc.) as the number of atoms in a sample of pure 12C weighing exactly 12 g is known as a mole.

The word "mole" has a "big mass" or "bulk" sense in Latin, which is congruent with its use as the name for this unit. The mole establishes a connection between bulk mass, which is a simple macroscopic attribute to measure, and the number of atoms, molecules, and other fundamental units, which is a crucial fundamental property.

Therefore, 94. 125 moles are present in 5.67x10^25 atoms of Carbon

(C).

To learn more about mole, refer to the link:

https://brainly.com/question/26416088

#SPJ2

Filling the rock cycle steps with the world Bank is as follows;

Additionally, the conversion of igneous, Sedimentary and metamorphous rock to sediments happens by a process termed Erosion/Weathering.

Also, conversion of magma to igneous rock is by cooling and vice versa is by heating.

Read more:

https://brainly.com/question/23866968

Answer:

A radio telescope is simply a telescope that is designed to receive radio waves from space.

radio telescopes helps to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system.

Answer: stronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices? ... They pick up the radio waves emitted by stars.

Answer:

Solid

Explanation:

In some plants such as Cactuses, the stem is flattened and green and carries out the function of the leaf. Such a stem, adapted for the manufacture of food is called phylloclade. The leaves here are reduced or modified into spines to lessen the transpiring surface.

Answer:

At this point the volume of the gas is halved. If the pressure on the piston is again doubled, the volume of gas decreases to one-fourth its original volume. FIGURE 9.8 Boyle's Law: At constant temperature, the volume of a gas sample is inversely proportional to the pressure.

The volume of the gas doubles.

Boyles law state that the pressure of a gas is indirectly proportional to the volume at constant temperature. It is given by:

PV = constant

Let us assume that initially the pressure is P and the volume is V, hence:

[tex]P_1=P,V_1=V[/tex]

The volume decreases to half its original value, hence:

[tex]P_2=\frac{P}{2}[/tex]

Therefore:

[tex]P_1V_1=P_2V_2\\\\\\PV=\frac{P}{2}V_2\\\\V_2=2V[/tex]

Therefore the volume of the gas doubles.

Find out more at: https://brainly.com/question/1437490

Answer:

an endothermic reaction absorbs heat and cools its surrounding

Explanation:

Answer:false

Explanation:

Answer:

what is total amount of saturated solution

ANSWER:

B. been incredibly dense? I'm not sure sorry

Answer:

When salt is dissolved in water, the particles of salt get into the spaces between particles of water and starts dissolving and disappear.

Explanation:

Answer:

Hydrogen Chloride is 74.64 grams.

Explanation:

Using the given information, we can find the amount of grams of hydrogen chloride that take place in the reaction.

Due to the Law of Conservation of Mass, the mass of the system must remain constant. To find the value of x, make the equation below.

[tex]24.30 + x=2.04 + 96.90[/tex]

The left side represent the reactant side of the chemical reaction and the right side represents the product side.

[tex]2.04 + 96.90= 98.94[/tex]

[tex]24.30+x=98.94[/tex]

[tex]24.30 - 24.30 + x= 98.94 - 24.30[/tex]

[tex]x=74.64[/tex]

Answer:

I think A.

Explanation:I say A because of the substance melting the quicking does have the highest melting point because its the highest.

Answer:

force i think

Explanation: