Observe the map what do the grey scar like represent?

Answer:

relating to or denoting the business of entertaining clients, conference delegates, or other official visitors.

Answer: In an endothermic reaction for whom the value of [tex]\Delta H[/tex] is positive has potential energy of the products greater than the potential energy of the reactants.

Explanation:

A chemical reaction in which heat energy is absorbed is called an endothermic reaction. For an endothermic reaction the value of [tex]\Delta H[/tex] is positive.

A chemical reaction in which heat energy is released is called an exothermic reaction. For an exothermic reaction the value of [tex]\Delta H[/tex] is negative.

In an endothermic reaction, heat energy is absorbed by the reactant molecules due to which the energy of products tend to increase. As potential energy is the energy acquired by a substance due to its position.

Therefore, we can conclude that in an endothermic reaction for whom the value of [tex]\Delta H[/tex] is positive has potential energy of the products greater than the potential energy of the reactants.

Answer:

C The potential energy of the products is greater than the potential

energy of the reactants.

Explanation:

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Answer:

Indicator?

Explanation:

not sure though

Answer:

Bleach, seawater, blood, water, coffee, orange, lemon

Explanation:

The pH is a measurement in chemistry defined as the -log [H⁺]. pH is used in quality control of materials. The pH is a scale from 1 (Acids) to 14 (Bases). The pH of 7 is for neutral solutions

Based on the information of the image, the most basic is bleach, then the seawater, the blood, water (Neutral), coffee, orange and, the most acidic is lemon.

The order is:

Answer:

Hello

The chemical bonds between the atoms of the decomposing compound are broken, and then rearranged between the atoms in new ways to make the products.

Explanation:

The chemical bonds between the atoms of the decomposing compound break, and new substances are formed as new chemical bonds form between the atoms of the elements of the decomposed compound.

Answer: I had that before it's a riddle. Here lemme find it and give you the answer.

Explanation:

1.H

2.E

3.C

4.O

5.U

6.L

7.D

8.U

9.T

10.P

11. N

12.T

13.I

14.T

15.D

16.O

17.N

18.W

Helium is a type of chemical element which is a noble gas that does not have odor, color, taste and does not contain toxicity. It's atomic number is 2  and is chemically represented with "He"

As a result of this, there are some unique characteristics of the Helium element which includes:

Please note that your question is disjointed so I gave you a general overview to help you understand the concept

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Answer:

A reduction potential measures the tendency of a molecule to be reduced by taking up new electrons. ... Standard reduction potentials can be useful in determining the directionality of a reaction. The reduction potential of a given species can be considered to be the negative of the oxidation potential.

Explanation:

Answer:

Solubility product constant

Solubility

Saturated Solution

Common ion effect

Molar Solubility

Explanation:

If i have the ionic compound KNO3 for instance; the solubility product of the compound is the  product of the molarities of the dissolved ions, raised to a power equal to the ion's coefficient in the balanced chemical equation.

E.g

KNO3(s) ------> K^+(aq) + NO3^-(aq)

Ksp = [K^+] [NO3^-]

The solubility of any given substance is defined as mass of the substance in grams that dissolves in 100 mL of water.

A saturated solution is one that has dissolved the maximum amount of  solute at a given temperature. If more solute is added, it will not dissolve.

If i add AgCl to a solution of HCl, the solubility of AgCl in HCl solution is found to be less than its solubility in pure water because of the presence of a common Cl^-. Hence, common ion effect is a decrease in the solubility of an ionic compound as a result of the addition of a common ion to the solution.

The molar solubility of a substance is defined as the maximum number of moles of a substance that will dissolve in 1 L of solution.

The terms used to describe the followings are:

The molarity is the concentration unit used for the determination of the moles of solute in the liter of solution.

For example:

[tex]\rm H_2A\;\rightarrow\;2H^+\;+A^-\\Solubility\;product\;constant=[H^+]^2[A^-][/tex]

The solution with the maximum amount of salt dissolved at a certain temperature is termed the saturated solution. Further addition of the solute results in the precipitation of the solute in the solution.

The effect raised with the addition of the common ions is termed the common ion effect.

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Answer:28 g

Explanation:

Answer:

Velocity

Explanation:

Synonyms are words/phrases that mean the exact or nearly exact same in meaning. Velocity, pace, and speed all mean close to the same thing as far as the rate in which something is moving.

Answer:

Though a hydrogen atom has only one electron, it contains a large number of shells, so when this single electron jumps from one shell to another, a photon is emitted, and the energy difference of the shells causes different wavelengths to be released. Hence, mono-electronic hydrogen has many spectral lines.

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Answer:

3.1 * 10^-14

Explanation:

Note that E°cell = 0.0592/n log K

We can obtain E°cell from the standard reduction potentials of cadmium and hydrogen

Anode reaction

H2(g) ----> 2H+ + 2e

Cathode reaction

Cd^2+(aq) + 2e -----> Cd(s)

E°cell = E°cathode - E°anode

E°cathode = –0.40 V

E°anode = 0 V

E°cell =  –0.40 V - 0 V

E°cell = –0.40 V

E°cell = 0.0592/n log K

Where n=2 electrons transferred

–0.40 = 0.0592/2 log K

–0.40 = 0.0296 log K

log K = –0.40/0.0296

log K = -13.5135

K = Antilog ( -13.5135)

K = 3.1 * 10^-14

The molarity of a solution containing 20moles of NaCl dissolved in 10 liters of water is 2 mol/L.

Molarity of any solution will be calculated by using the below formula:
M = n/V, where

n = moles of solute = 20 mol

V = volume of solution or solvent = 10 L

On putting values on above equation, we get

M = 20 / 10 = 2M

Hence required molarity of NaCl is 2 M.

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Answer:

Universal indicator can show us how strongly acidic or alkaline a solution is, not just that the solution is acidic or alkaline. This is measured using the pH scale , which runs from pH 0 to pH 14.

Explanation:

~Hope this helps

Answer: [tex]Molarity=Normality\times \frac{gew}{gmw}[/tex]

Explanation:

Molarity is defined as the number of moles dissolved per liter of the solution.

[tex]Molarity=\frac{\text {moles of solute}}{\text {Volume in L}}[/tex]

[tex]{\text {moles of solute}=\frac{\text {given mass}}{\text {Molar mass}}[/tex]  

Normality is defined as the number of gram equivalents dissolved per liter of the solution.

[tex]Normality=\frac{\text {gram equivalents of solute}}{\text {Volume in L}}[/tex]

[tex]{\text {gram equivalents of solute}}=\frac{\text {given mass}}{\text {Equivalent mass}}[/tex]

Thus [tex]Molarity=Normality\times \frac{\text {Equivalent mass}}{\text {Molar mass}}[/tex]

Answer:

during interphase the cells start to grow

cells grow, store up energy, and take in nutrients

hope it helped :)

Answer:

Na+ And A-

Explanation:

Answer: Na + and A-

Explanation:

Answer:

Heat reaction

Explanation:

Heat must be applied in order to melt a substance.

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This is bob. If you brainliest him. He will reward you with a certain script.

156.975kj heat is required to raise the temperature of 0.50 kg of liquid water from 15℃ to 90℃.

The term specific heat is defined as the quantity of heat required to increase the temperature of one gram of a substance by one Celsius degree.

To calculate the energy required to raise the temperature of any given substance,

Given:

The mass of the material, m

The temperature change that occurs, ΔT

The specific heat capacity of the material, c (which you can look up). This is the amount of heat required to raise 1 gram of that substance by 1°C.

Q = m × c × ΔT

For water, the value of c is 4.186 J/g°C

Therefore,

Q = 500 × 4.186 × 75

= 156,975j

= 156.975kj

Thus, 156.975kj heat is required to raise the temperature of 0.50 kg of liquid water from 15℃ to 90℃.

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Answer:

Explanation:

The rock cycle basically tell you how the different types of rocks are related to each other and tells how they change over time.

Hope this helped!!!

Answer:

The rock cycle is the process by which rocks of one kind change into rocks of another kind. Metamorphic rock is igneous or sedimentary rock that has been heated and squeezed. It can erode into sediment or melt into a hot substance known as refordium. It is formed under extreme pressure and temperature deep inside mountain chains. For example, sedimentary rock shale becomes slate when heat and pressure are added, thus transforming it into another state of rudementury.

Answer:

[tex]161.9gZn[/tex]

Explanation:

Hello there!

In this case, according the given balanced chemical reaction:

[tex]Zn + 2HCl\rightarrow H_2 + ZnCl_2[/tex]

It is possible to evidence the 1:1 mole ratio of hydrogen (molar mass = 2.02 g/mol) to zinc (atomic mass = 65.41 g/mol) which is used to calculate the grams of the latter needed for the production of 5 grams of the former via stoichiometry:

[tex]5gH_2*\frac{1molH_2}{2.02gH_2}*\frac{1molZn}{1molH_2} *\frac{65.41gZn}{1molZn}\\\\=161.9gZn[/tex]

Best regards!

Explanation:

T=?

Given

n=3.33×10³

V=478mL=4.78L

P=750torr= 0.987 Atm

simply use the formula

PV =nRT

where R is universal gas constant

0.987×4.78= 3.33×10³×8.314×T

T = 0.000170°c

T= 273.15 K!

The absolute temperature of the gas at which 3.33x10³ mol occupies 478 mL at 750 torr is 1.726 × 10-³K

HOW TO CALCULATE TEMPERATURE:

PV = nRT

Where;

According to this question,

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Answer:

See explanation

Explanation:

Echo is the reflection of sound waves. Recall that ultrasound are also sound waves of high frequency.

When ultra sound meets an obstacle such as a bone, it is reflected backwards and gives rise to an echo back in the transducer.

Since ultrasound is high frequency sound wave wave; It does not passes through bone due to the high density of the bone, the data required may now be collected.

Answer: 4.) CH3O is the answer, which stands for Methoxide.

Explanation: