can someone please show work and help me with this thank you <3

almost the same

just different in bond

Answer:

NaCl

Explanation:

Answer:

NACL

|•ANSWER,•|.....

hope it helps u.

Answer:

Probably stop taking the prescribed durg and contact your pharmacist and your doctor that gave you your prescription asap.

Explanation:

Both of those health professionals will assist the patient in understanding how to go about the next steps for side effect relief.

The compound is ethanol

Answer:

v2=40.35L

Explanation:

p1v1/t1=p2v2/t2

v2=t2p1v1/t1p2

v2=984*760*22.4/273.15*1520

v2=40.35 L

please try to keep questions acedemic related

it does no good for questions like this to be on here when others need help, try to keep your questions..

  - Partained to the particular subject
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no hard feelings, though this question and answer will be deleted by moderators soon so just keep all that in mind ^^

The amount of 0.25 M KI solution is needed is 0.38 L.

Solution is defined as a homogeneous mixture of two or more substances in relative amounts that can be continually altered up to what is known as the limit of solubility.

It can also be defined as a combination of one substance dissolved in another with the same properties throughout.

The solution can be homogenous or heterogenous mixture.

2 KI + Pb(NO3)2 → Pbl₂ + 2 KNO3

As per the reaction

The ratio is KI : Pb(NO3)2 is 1:1

So, we use M1V1 = M2V2

As given, M1 = 0.25 M

                M2 = 0.75 M

                V2 = 0.125 L

So, V1 = M2 V2 / M1

      V1 = 0.75 x 0.125 / 0.25

       V1 = 0.38 L

Thus, the  amount of 0.25 M KI solution is needed is 0.38 L.

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Answer:

261.1 N

Explanation:

Force = mass × acceleration due to gravity

Force is also known as weight. So:

Weight = 70 × 3.73 = 261.1 N

Answer:

the United States and the Soviet Union.

Explanation:

Basically we were in toe to toe with the russians for space explorations like who's gonna get to space first or moon or do such explorations

If two liquid solutions are mixed together, the solute would be the one with the lower volume while the solvent would be the solution with the higher volume.

The mixing of two liquids requires that one is a solute while the other is a solvent.

Thus, the solution with the higher volume acts as the solvent while the one with the lower volume act as the solute.

For example, a solution made by mixing 25% water with 75% alcohol has water as the solute and alcohol as the solvent.

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Gravity the dominant force among planets because it acts at long distances.

Gravity is the weakest force as compared to the forces but it is the most dominant force because it has the longest range.

So we can conclude that Gravity the dominant force among planets because it acts at long distances.

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Explanation:

Oxidation state of Nitrogen in NO is +2

Answer:

+2

Explanation:

Answer:

Explanation:

                                       Answer:

Explanation: stay the same

Answer:

answer

Cold Front - a zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer.

Warm Front - a transition zone between a mass of warm air and the cold air it is replacing.

Stationary Front - a front between warm and cold air masses that is moving very slowly or not at all.

Answer:

"the energy that is associated with temperature" ✔️

Explanation:

Thermal Energy = Heat

Ex: The sun has thermal energy.

Ex: The oven radiates thermal energy

I hope this helps, you understand!!

The statement describes thermal energy is as

So, option D is correct one

The energy posses by the particles or system due to their temperature is called thermal energy.

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Answer:

A a mountain

Explanation:

this is becuase the two plates are pushing into each other, so all that rock will go where theres the least resistance, up

you can see this when you place your hands (palms down facing each other where the tis touch) on a table or flat surface, if you slowly bring them together ((DONT DO IT HARD OR FAST else u may hurt urself)) your fingertips will begin to want to rise up

the answer is not B becuase:

a canyon is formed when erosion carves into the earth, this oes NOT need to happen at a fault line and deffinitally does not happen n converging plates as shown

the answer is not D becuase:

a ridge is formed when ne plate pushes under the other, pushing that second plate upward, when this happens it forms a chain of mountains, though this is simmilar to the correct answer, the diagram does not show the plates undernieth one another, rather they are pushing against each other

the answer is not C becuase:

a fault is where two plates are moving away from each other, creating a canyon like structure, this is not a canyon however, for it is not formed by erosion, most faults can be found underwater since oceans usually fill in the gap where rock used to be

hope this helps you, sorry if its a lot of reading ^^"

Answer:

It works by separating the fuel from the oxygen. The oxygen comes from the air. It is the same oxygen we breathe. Since the oxygen has to be in contact with the fuel, if you can coat the fuel with something that keeps the oxygen away, the fire will go out which is what the fire extinguisher does.

Answer: C

Explanation:

Zinc is the most active metal among the options.

Ni²⁺ is  most likely to be reduced. Therefore, the correct option is option C among all the given options.

In a half-reaction known as reduction, a chemical species lowers its oxidation number, typically by acquiring electrons. Oxidation, which results in the loss of electrons, makes up the reaction's other half. Redox reactions are formed when reduction and oxidation work together (reduction-oxidation equals redox).

You could think of reduction as the antithesis of oxidation. Oxidation and reduction in some reactions can be thought of as the transfer of oxygen. Here, oxygen is gained by oxidation while it is lost through reduction. Ni²⁺ is  most likely to be reduced.

Therefore, the correct option is option C. Ni²⁺ is  most likely to be reduced.

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The % ionization of HN0₂ is 6.98 %

The relative strengths of acids may be determined by measuring their equilibrium constants in aqueous solutions.

In solutions of the same concentration, stronger acids ionize to a greater extent, and so yield higher concentrations of hydronium ions than do weaker acids.

Percentage Ionization is the measure of the strength of an acid is its percent ionization.

The percent ionization of a weak acid is the ratio of the concentration of the ionized acid to the initial acid concentration, times 100:

The chemical equation for the dissociation of the nitrous acid is:

HNO₂(aq)+H₂O(l)⇌NO²⁻(aq)+H₃O⁺(aq).

[tex]\rm \% \;ionization = \dfrac{[H_{3}O^{+} ] _{eq} }{[HNO_{2}]_{0} } \times 100[/tex]

 [tex]\rm 10^{-pH} =[/tex] [H₃O⁺] ,

we find that with given pH of 1.98

[tex]10^{-1.98} =[/tex] 0.01047128548 M=[H₃O⁺]

Molarity of HN0₂ = 0.15 M

so that percent ionization is

[tex]\% ionization = \dfrac{0.01047128548 }{0.15 } \times 100[/tex]

[tex]\% ionization = 6.98 \%[/tex]

Therefore the % ionization of HN0₂ is 6.98 %

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Commercial agriculture often leads to water-quality problems as a result of run-offs and agrochemical discharge.

Most commercial agriculture requires the use of agrochemicals and fertilizers.

Agrochemicals such as insecticides and herbicides are poisonous to aquatic biodiversity when run-offs are discharged from farmlands to water bodies.

Fertilizer run-offs into water bodies also cause nutrient enrichment, leading to eutrophication.

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Answer:

easily forming bonds w/ atoms of other elements and combining w/ oxygen atoms to form new substance

Answers:

1st: 189.6 g/mol

2nd: 0.1357 L

3rd: 1.41 M

Explanation:

Finding Molar Mass:

SnCl2 = Tin(II) Chloride

Tin has a molar mass of 118.71 g/mol

Chloride has a molar mass of 35.453 g/mol

Chloride*2 = 70.906

118.71 + 70.906 ≈ 189.6 g/mol

Finding Liters of Solution:

L = mL/1000

135.7 mL / 1000 = 0.1357

Finding Molarity:

molarity = moles of solute / liters of solution

M = (36.4g /  189.6g) / 0.1357 L = 1.41 M

Hope this helped ;)

Answer:

35.9 ml

Explanation:

Start with the balanced equation:

3CuCl2(aq)+2Na3PO4(aq)→Cu3(PO4)2(s)+6NaCl(aq)

This tells us that 3 moles of CuCI2 react with 2 moles Na3PO4-

∴  1 mole CuCl2 will react with 2/3 moles Na3PO4

We know that concentration = moles/volume i.e:

c= n/v

∴n=c×v

∴nCuCl2=0.107×91.01000=9.737×10−3

I divided by 1000 to convert ml to L

∴nNa3PO4=9.737×10−3×23=6.491×10−3

v=nc=6.491×10−30.181=35.86×10−3L

∴v=35.86ml

Answer:

n = 0.487⋅mol

Explanation

n=PVRT

=0.4⋅atm×30⋅L0.0821⋅L⋅atm⋅K−

1⋅mol−1×300⋅K

=0.487⋅mol

Explanation: