What is the value for the rate of constant, k(with units)?

Answer:

Explanation:

Introduction Paragraph. Hook. Background Points. Thesis Statement.( done)

Body Paragraph. Topic Sentence. Supporting fact 1. Supporting fact 2. Transition Sentence.(done)

Conclusion Paragraph. Re-statement of Thesis. Summary of Main Point. Challenge to the Reader.( done)

Answer: a) [tex]H_3O^++CH_3O^-\rightleftharpoons CH_3OH+H_2O[/tex]

acid : hydronium ion

base : methoxide ion

conjugate acid : methanol

conjugate base: water

b) [tex]CH_3CH_2O^-+HCl\rightleftharpoons CH_3CH_2OH+Cl^-[/tex]

acid : hydrogen chloride

base : ethoxide ion

conjugate acid : ethanol

conjugate base: chloride ion

c) [tex]NH_2^-+CH_3OH\rightleftharpoons NH_3+CH_3O^-[/tex]

acid : methanol

base : amide ion

conjugate acid : ammonia

conjugate base: methoxide ion

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

The species accepting a proton is considered as a base and after accepting a proton, it forms a conjugate acid.

The species losing a proton is considered as an acid and after loosing a proton, it forms a conjugate base

For the given chemical equation:

a) [tex]H_3O^++CH_3O^-\rightleftharpoons CH_3OH+H_2O[/tex]

acid : hydronium ion

base : methoxide ion

conjugate acid : methanol

conjugate base: water

b) [tex]CH_3CH_2O^-+HCl\rightleftharpoons CH_3CH_2OH+Cl^-[/tex]

acid : hydrogen chloride

base : ethoxide ion

conjugate acid : ethanol

conjugate base: chloride ion

c) [tex]NH_2^-+CH_3OH\rightleftharpoons NH_3+CH_3O^-[/tex]

acid : methanol

base : amide ion

conjugate acid : ammonia

conjugate base: methoxide ion

.

Answer:

The one left in the hot sunlight.

Explanation:

The solubility of gases decreases when temperature increases. The gas in the soda pop (CO2) left in the sun will not stay dissolved as much as the on left in the refrigerator.

Soda is a carbonated drink with soda or water and a sweetener. Soda pop in the fridge will have more fizzing and bubbles.

Carbonated drinks are drinks or beverages that contain dissolved carbon dioxide. They have small bubbles and fizz of the carbon dioxide present in them.

Carbonation of the drinks is linked to the temperature as at high temperature, liquid tends to lose the carbon dioxide fizz. The carbon dioxide bubbles are retained at low temperatures as the solubility of the carbon dioxide is increased.

Therefore, the bottle kept in the refrigerator will have more bubbles and fizz.

Learn more about soda and carbonated here:

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Answer:

True

Explanation:

The core of the earth is very dense so that leads me to beleive that the answer is true.

Answer:

(Kc)^2

Explanation:

For this reaction 4 A⇌ 2B Kc is (Kc)∧².

The equilibrium constant is the value of the reaction quotient that is calculated from the expression for chemical equilibrium. A thermodynamic equilibrium constant, denoted by , is defined to be the value of the reaction quotient Qt when forward and reverse reactions occur at the same rate. At chemical equilibrium, the chemical composition of the mixture does not change with time and the Gibbs free energy change. Stability constants, formation constants, binding constants, association constants and dissociation constants are all types of equilibrium constants.

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Answer:

potential energy = mgh put values and get your answer

Answer:

Chemical

Explanation:

the acid is a chemical and the molecules are getting torn apart by the acid

Explanation:

Radioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles (radiation). Decay is said to occur in the parent nucleus and produces a daughter nucleus. This is a random process, i.e. it is impossible to predict the decay of individual atoms.

HOPE THSI HELPS HAVE A NICE DAY!

Answer:

PHOTOSYNTHESIS

Explanation:

Photosynthesis is the process by which plant take in Carbondioxde and water in the present of sunlight in order to produce glucose and oxygen

How atoms interact with other atoms is largely dependant on the number of electrons on its outermost layer. The electrons on this layer are called valence electrons.

As you might know, atoms have their electrons arranged in layers/shells, starting at k, l m, n etc. Each layer has a maximum number of electrons it can accommodate, with the outermost one being the valence shell. The first layer (k) can accomodate 2 electrons, the second one (l) can accomodate 8, as can the third one (m) etc.

As a rule of thumb, most atoms don't like being alone. These atoms have a valence shell that isn't saturated. This is the case for hydrogen(1), with one free slot in its outter shell.

However, atoms like helium are a bit different. They are inert, and don't need to bond with other atoms. This is because their valence shell is saturated. In this case, helium saturated the k shell with 2 electrons. Helium in this form will not form bonds.

However, hydrogen is still out there looking for buddies. Hydrogen will bind with any other atom with a free electron. Being extremely common, it's likely that said atom will be another hydrogen.

However, another common example would be for 2 hydrogens to bond with one oxygen, forming h2O (oxygen can form 2 bonds)

Conclusion : helium is inert and will not interact with other atoms. Hydrogen is not, and thus needs to bond with other atoms.

Answer:

From the Online Catalog to the Shelf

Libraries in the United States generally use either the Library of Congress Classification System (LC) or the Dewey Decimal Classification System to organize their books. Most academic libraries use LC, and most public libraries and K-12 school libraries use Dewey.

Explanation:

Answer:

From the Online Catalog to the Shelf

Libraries in the United States generally use either the Library of Congress Classification System (LC) or the Dewey Decimal Classification System to organize their books. Most academic libraries use LC, and most public libraries and K-12 school libraries use Dewey.

Answer:

neon is the Noble gas but I have not studied this much

Answer:

C₈H₁₈(l) + O₂(g) ⇒ CO₂(g) + H₂O(l)

Explanation:

Let's consider the unbalanced equation for the combustion reaction of octane.

C₈H₁₈(l) + O₂(g) ⇒ CO₂(g) + H₂O(l)

We can begin balancing H atoms by multiplying H₂O by 9, and C atoms by multiplying CO₂ by 8.

C₈H₁₈(l) + O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(l)

Finally, we get the balanced equation by multiplying O₂ by 12.5.

C₈H₁₈(l) + 12.5 O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(l)

Answer:

The coefficents will be 2, 25 --> 16, 18

Explanation:

Answer:65.4 meters= 65400 millimeters

Explanation:

it can suddenly increase when more and more people have babies and the infant rate goes up. and how it might affect the ecosystem is the pollution that people give off.

Answer:

Explanation:

Due to less predators in the Savannah/habitat, the population could unexpectedly grow. This will have an impact on the environment because it will give rise to more prey as there will be fewer predators. If too many herbivores are present on one feeding site, competition for food will occur. If there are more plants in an area than normal, it can increase the population of animals that consume the plant. If the population of one animal rises, the population of animals that consume that animal could also rise.

Population growth isn't always good. A population may often grow too big to sustain the climate. Other modifications in limiting variables can cause a population to decline. The population will decrease if a population becomes diseased, and the population of animals that consume the diseased animals will decrease as well. Populations in nature typically balance themselves. Sometimes, they can't always restore a natural balance as man affects populations.

a. [tex]\mathrm{2HCl_{(aq)} + Zn_{(s)}} \rightarrow \mathrm{H_{2(g)} + ZnCl_{2(aq)}}[/tex]

b. [tex]\mathrm{2C_2H_{2(g)} + 5O_{2(g)}} \rightarrow \mathrm{4CO_{2(g)} + 2H_2O_{(g)}}[/tex]

c. [tex]\mathrm{2AgNO3_{(aq)} + CaCl_{2(aq)}} \rightarrow \mathrm{2AgCl_{(s)} + Ca(NO_3)_{2(aq)}}[/tex]

d. [tex]\mathrm{O_{2(g)}+2H_{2(g)}} \rightarrow \mathrm{2H_2O_{(\ell)}}[/tex]

e. [tex]\mathrm{2H_2O_{2(aq)}} \rightarrow \mathrm{O_{2(g)} + 2H_2O_{(\ell)}}[/tex]

Answer:

The answer is below

Explanation:

A 21.0 g sample of aluminum, which has a specific heat capacity of 0.897 J g '°C ', is dropped into an insulated container containing 200.0 g of water at 25.0 °C and a constant pressure of 1 atm. The initial temperature of the aluminum is 90.1 °C Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 3 significant digits.

Solution:

The amount of heat lost or gained by a substance is given by the formula:

Q = mcΔT

Where Q is the heat lost or gained, m is the mass of the substance, ΔT is the temperature change.

The law of conservation of energy states that energy cannot be created or destroyed but can be transferred.

Therefore the heat lost by aluminum = heat gained by water

[tex]Q_{lost}=Q_{gained}\\\\m_ac_a\Delta T_a=m_wc_w\Delta T_w\\\\m_a= mass \ of\ aluminium = 21g,c_a=specific\ heat\ capacity\ of\ aluminum\\=0.897\ J/g^oC, \Delta T_a=90.1^oC-x,x=equilibrum\ temperature\\m_w= mass \ of\ water = 200g,c_w=specific\ heat\ capacity\ of\ water\\=4.184\ J/g^oC, \Delta T_w=x-25^oC\\\\ hence:\\\\21*0.897*(90.1-x)=200*4.184*(x-25)\\\\1697.2137-18.837x=836.8x-20920\\\\838.8x+18.387=1697.2137+20920\\\\857.187x=22617.2137\\\\x=26.4^oC[/tex]

Answer:

It's visualization.

Explanation:

Hope this helps :)

Answer:

The planet would stop

Good luck!

Answer:

4.54g of Tris base,25mL of the 0.25M stock solution of glucose and 7.5mL of the 5M stock solution of NaCl must be added and complete the volume in a volumetric flask to 250.0mL

Explanation:

To prepare the single solution we need to find the moles of each solute (Tris, glucose and NaCl) from the stock solutions anf the solid:

Moles Tris:

0.250L *(0.150mol / L) = 0.0375moles Tris * (121.1g/mol) = 4.54g of Tris base must be added

Moles glucose:

0.250L * (0.025mol/L) = 6.25x10⁻³mol glucose * (1L / 0.25mol) = 0.025L = 25mL of the 0.25M stock solution of glucose must be added

Moles NaCl:

0.250L * (0.150mol / L) = 0.0375mol NaCl * (1L / 5mol) = 0.0075L =

7.5mL of the 5M stock solution of NaCl

You must add:

4.54g of Tris base,25mL of the 0.25M stock solution of glucose and 7.5mL of the 5M stock solution of NaCl must be added and complete the volume in a volumetric flask to 250.0mL

Answer:

C

Explanation:

Answer:

true

Explanation:

Hotter things have more heat energy than colder things. That's because the atoms or molecules move around faster in hot things (red, right) than they do in cold things (blue, left). ... The more heat you supply, the faster the molecules move and the further apart they get.

Answer: Depends on the situation.

Explanation: Hotter things do have more energy than colder things. But, if the mass of the colder thing is bigger, it really depends. If the colder thing have way more particles than the hotter thing, the colder thing may have more energy.

Answer:

I think you would have to multiply 6 times 2, which it equals 12. And then just divide it by 300, and that's your answer. Hope I was able to help!

Explanation: Have a good day!

Answer:

increase the number of blocks

increase the number of students pulling the cart

increase the number of blocks and increase the number of students pulling the cart

decrease the number of blocks

decrease the number of students pulling the cart

decrease the number of blocks and decrease the number of students pulling the cart

(ANSWER CHOICES)

Explanation:

Answer:

89%

Explanation:

The computation of the sample percentage is sugar is shown below:

As we know that

The mass of the total sample mixture is

= Mass of salt + mass of sugar

= 0.8920

And, the mass of salt is 0.0982 g

So, the mass of sugar is

= 0.8920 - 0.0982

= 0.7938 g

Now the percentage of the sample is sugar is

= 0.7938 ÷ 0.8920

= 89%

Answer

Solid

liquid

Gas

Explanation: