Solution A: pH of 10
Solution B: pH of 7
Solution C: pH of 5
Which list has the solutions placed in order of increasing H+ concentration?

Answers

Answer 1

Answer:

I think it’s C,B,A

Explanation:


Related Questions

how many moles in 200 grams of Br

Answers

2.5030036043252 moles.

A compound contains 1.2 g of carbon, 3.2 g of oxygen and 0.2g of hydrogen. Find the formula of the compound

Answers

Answer:

The empirical formula of the compound is [tex]C_{0.504}HO_{1.008}[/tex].

Explanation:

We need to determine the empirical formula in its simplest form, where hydrogen ([tex]H[/tex]) is scaled up to a mole, since it has the molar mass, and both carbon ([tex]C[/tex]) and oxygen ([tex]O[/tex]) are also scaled up in the same magnitude. The empirical formula is of the form:

[tex]C_{x}HO_{y}[/tex]

Where [tex]x[/tex], [tex]y[/tex] are the number of moles of the carbon and oxygen, respectively.

The scale factor ([tex]r[/tex]), no unit, is calculated by the following formula:

[tex]r = \frac{M_{H}}{m_{H}}[/tex] (1)

Where:

[tex]m_{H}[/tex] - Mass of hydrogen, in grams.

[tex]M_{H}[/tex] - Molar mass of hydrogen, in grams per mole.

If we know that  [tex]M_{H} = 1.008\,\frac{g}{mol}[/tex] and [tex]m_{H} = 0.2\,g[/tex], then the scale factor is:

[tex]r = \frac{1.008}{0.2}[/tex]

[tex]r = 5.04[/tex]

The molar masses of carbon ([tex]M_{C}[/tex]) and oxygen ([tex]M_{O}[/tex]) are [tex]12.011\,\frac{g}{mol}[/tex] and [tex]15.999\,\frac{g}{mol}[/tex], then, the respective numbers of moles are: ([tex]r = 5.04[/tex], [tex]m_{C} = 1.2\,g[/tex], [tex]m_{O} = 3.2\,g[/tex])

Carbon

[tex]n_{C} = \frac{r\cdot m_{C}}{M_{C}}[/tex] (2)

[tex]n_{C} = \frac{(5.04)\cdot (1.2\,g)}{12.011\,\frac{g}{mol} }[/tex]

[tex]n_{C} = 0.504\,moles[/tex]

Oxygen

[tex]n_{O} = \frac{r\cdot m_{O}}{M_{O}}[/tex] (3)

[tex]n_{O} = \frac{(5.04)\cdot (3.2\,g)}{15.999\,\frac{g}{mol} }[/tex]

[tex]n_{O} = 1.008\,moles[/tex]

Hence, the empirical formula of the compound is [tex]C_{0.504}HO_{1.008}[/tex].

which organism ( grass, prairie, dog, ferret, or fox) do you think is a producer (does not depend on another organism for its food)?

Answers

Answer:

grass

Explanation:

Grass is at the very bottom of the food chain and relies solely on sunlight and water, which aren't organisms. I'm going to assume you meant prairie dog because a prairie isn't an organism, but prairie dogs rely on grass for food. Ferrets rely on meat for food (which they get from other animals) and foxes rely on other animals for food as well. Therefore, grass is the only organism that is a producer (gives other organisms food) and doesn't rely on other organisms for food.

Answer:

Grass

Explanation:

A producer or autotroph is an organism that produces its own food. These include plants, algae, and some bacteria. They convert carbon dioxide, water, and light energy from the sun into glucose, a type of sugar that provides energy, in the process of photosynthesis.

The organisms we are given are grass, prairie dog, ferret, and fox. The only plant is grass. Prairie dogs, ferrets, and foxes are all consumers, and depend on other organisms (plants, grass, leaves, or other animals for meat) for food.

Therefore, the producer in this list is grass.

what is the chemical formula for zinc?

Answers

ZnO
is the answer for what is the chemical formula for zinc?

Consider the following physical properties and fill in the missing information.

Answers

Answer:

I'm going to assume by "tool", you mean the tool best used to measure each factor:

Mass-Tool: scale, Unit: kilogram (kg)

Length-Tool: ruler, Unit: meter (m)

Volume of a regular solid-Tool: equations (there really isn't a physical tool to measure volume of a solid), Unit: cubic meters (m^3)

Volume of a liquid or irregular solid-Tool: beaker, Unit: Milliliters (mL)

Melting and boiling point-Tool: thermometer, Unit: Celsius (C)

Hope this managed to help!

Consider the statement, “In a chemical reaction, atoms are neither created nor destroyed, only rearranged.” Why is this a statement of the law of conservation of mass?

Answers

Answer: The law of conservation of mass is reffering to the fact that energy cannot be created or destroyed. So when you speak about atoms not being created or destroyed it is the same thing. Unless you're talking about an atomic bomb where the atoms are split.

In a chemical reaction, the total mass present is equal to the mass of all the atoms undergoing the reaction.

According to the law of conservation of mass, mass is neither created nor destroyed but can be converted from one form to another. In a chemical reaction, atoms are rearranged. However, the total number of atoms in the system remains constant.

So, the total mass present in the system is equal to the mass of all the atoms undergoing the reaction. Since atoms are only rearranged, no new atom is formed and no atom disappears in the reaction, the total mass of the system remains constant.

For this reason, the statement;  “In a chemical reaction, atoms are neither created nor destroyed, only rearranged" is a statement of the law of conservation of mass.

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What is concentration if pOH is 8?
A) 1 x 10-8 M
B) 1 x 102 M
C) 1 x 10-2M
D) 1 x 108 M

Answers

The answer is A) 1 x 10-8 M.

How does increased exhalation of CO2 at the lungs (pulmonary regulation) restore the correct pH range?

Answers

Answer:

When CO2 levels become excessive, a condition known as acidosis occurs. This is defined as the pH of the

blood becoming less than 7.35. The body maintains the balance mainly by using bicarbonate ions in the

blood. As the body responds to neutralize this condition, an electrolyte imbalance – an increase of plasma

chloride, potassium, calcium and sodium, can occur.

The table below shows the speed of sound waves from musical sound sources at 20°C.

Which conclusion can be made based on the information in the table?

Wave speed and wave lengths can vary inversely to produce the same frequency.
Frequency and wave speed can vary directly to produce the same wavelength.
Wavelengths and frequency can vary inversely to produce the same wave speed.
Frequency and wave speed can vary directly to produce the same wave speed.

Answers

Answer:

C

Explanation:

Wavelengths and frequency can vary inversely to produce the same wave speed

Answer:

C) Wavelengths and frequency can vary inversely to produce the same wave speed.

Explanation:

edge

If the chemist mistakenly makes 250 mL of solution instead of the 200 mL, what molar concentration of sodium nitrate will the chemist have actually prepared? Answer in units of M.

Answers

Answer:

0.120M is the concentration of the solution

Explanation:

Assuming the mass of sodium nitrate dissolved was 2.552g

Molar concentration is an unit of concentration widely used in chemsitry defined as the moles of solute (In this case NaNO3) in 1L of solution.

To find this question we must find the moles of NaNO3 in 2.552g. With this mass and the volume (250mL = 0.250L) we can find molar concentration as follows:

Moles NaNO3 -Molar mass: 84.99g/mol-

2.552g * (1mol / 84.99g) = 0.0300 moles NaNO3

Molar concentration:

0.0300 moles NaNO3 / 0.250L =

0.120M is the concentration of the solution

PLZ SOMEONE HELP I’LL MARK AS BRAINLIEST!!!
In an experiment 10 grams of a substance has a volume of 24 cm? What is the
substances' density ?

Answers

Answer:

[tex]d=0.417\ g/cm^3[/tex]

Explanation:

Given that,

Mass, m = 10 g

Volume, V = 24 cm³

We need to find the density of the substance. We know that, the density of a substance is given by :

Density = mass/volume

So,

[tex]d=\dfrac{10\ g}{24\ cm^2}\\\\d=0.417\ g/cm^3[/tex]

So, the density of the substance is [tex]0.417\ g/cm^3[/tex].

The table shows the speed of sound in four substances.
Substance. Speed (meters/second)
air. 330
water. 1,498
steel. 5,000
copper. 6,420

Based on this information, which substance has the lowest density?
O A water
O B. steel
C. copper
O D. air​

Answers

I believe it’s Air because the molecules can pack tightly or spread out.

Based on this information,  air​ has the lowest density. Therefore, the correct option is option D.

What is density?

The substance's mass every unit of volume is known as its density. Although the Roman letter D may also be used, the sign most frequently used for density.  Density is calculated mathematically by dividing mass by volume.

Where m is the mass, V is the volume, and is the density. Density is sometimes roughly characterized as weight every unit volume, while this is incorrect technically; this quantity is much more precisely known as specific weight.  Air​ has the lowest density.

Therefore, the correct option is option D.

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What is the balanced equation for combustion of copper (I)?

Answers

Answer:

Cu + O2 = CuO - Chemical Equation Balancer.

Are elements always the product of a decomposition reaction?

Answers

The pure form of an atom present in a sample is called the element. No, elements are not always the product of the decomposition reaction.

What is decomposition reaction?

Decomposition is a chemical reaction in which the compound or the molecule breaks to produce two or more products. The general reaction can be given as,

[tex]\rm XY \rightarrow X+ Y[/tex]

And,

[tex]\rm compound \rightarrow element + element[/tex]

The splitting of metal hydroxide into the water and metal oxide is an example of a decomposition reaction. Elements can be found in the free state.

Therefore, the statement is incorrect.

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The air pressure above a large body of water off the coast of Florida is much higher compared to the air above the coast. What direction would the wind blow in this situation? (i know its kinda easy but im dum please help)

A
from the ocean to the coast

B
from the coast to the ocean

C
from the ocean, vertically into the sky

D
from the coast, vertically into the sky

Answers

A I just took the test

The direction in which the wind will blow in this situation is from the ocean to the coast and is denoted as option A.

What is Pressure?

This is defined as the force per unit area of a body and the unit is Pascal. We were told that air pressure above a large body of water is higher than the air above the coast.

This will make the wind blow from the ocean to the coast as the ocean has a higher pressure.

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Which of the following do not contribute to weathering?
A. Rain
2.earthquakes
3. ice
4. wind

Answers

Answer:

Earthquakes

Explanation:


If the temperature and amount of gas stays constant, what will happen to the pressure of a gas if the volume of the container decreases?

Answers

If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase. However, if you were to maintain a constant volume while decreasing pressure, the temperature would also have to decrease.

which group/family of elements will most likely form ions with a charge of - or 1-?

Answers

Answer:

Re: Most likely charge for ions. Group 1 elements generally have a charge of +1 when they form ions, Group 2 has a charge of +2, Group 13 has a charge of +3. Group 17 has a charge of -1, Group 16 has a charge of -2, Group 15 has a charge of -3. So Rb would be +1, Ga would be +3, and S would be -2.

Explanation:

Chemical properties of matter depend mostly on what?

Answers

Answer:

the types of atoms and bonds that a substance contains

Explanation:

Answer:

the types of atoms and bonds that a substance contains

Explanation:

the 3 factors that affect the process of Natural Selection

Answers

Answer:

Overproduction of Offspring. The first of these factors that must be present in order for Natural Selection to occur is the ability of a population to overproduce offspring.

Variation.

Selection.

Reproduction of Adaptations.

Explanation:

What is the name of P2O in Chemistry?

Answers

P2O : Summary

Code P2O

Molecule name 3-PROP-2-YN-1-YL-1,3-OXAZOLIDIN-2-ONE

Synonyms 1-(PROP-2-YNYL)-OXAZOLIDINE-2-ONE

Systematic names Program Version Name ACDLabs 10.04 3-prop-2-yn-1-yl-1,3-oxazolidin-2-one OpenEye OEToolkits 1.5.0 3-prop-2-ynyl-1,3-oxazolidin-2-one

P2O is called skeletal formula, which is the standard notation for organic molecules.

If the Earth is at a perpendicular angle or right angle to the sun we will be experiencing...??
plz hurry!!

Answers

Answer:

angle

Explanation:

let us see the sun moves an a angle

How much of a 10 M solution is needed to make 1 liter of all solution?
a. 1ml
b. 1000ml
c. 10ml
d. 100ml

Answers

Answer:

b is the answer 1000ml

please mark me brainlist

Use the reaction below for the decomposition of sodium azide

to sodium metal and nitrogen gas.

2NaNg(s) + 2Na(s) + 3N2(g)

What volume of nitrogen at STP is generated by the decomposition of 130.0 g NaNz?

Answers

Answer: The volume of nitrogen gas at STP is 44.8 L.

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation for it follows:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]                    ...(1)

We are given:

Given mass of [tex]NaN_3[/tex] = 130.0 g

Molar mass of [tex]NaN_3[/tex] = 65.01 g/mol

Using equation 1:

[tex]Moles of NaN_3=\frac{130.0 g}{65.01g/mol}=2mol[/tex]

For the given chemical equation:

[tex]2NaN_3(s) \rightarrow 2Na(s) + 3N_2(g)[/tex]

By the stoichiometry of the reaction:

2 moles of [tex]NaN_3[/tex] produces 3 moles of nitrogen gas

At STP:

1 mole of a gas occupies 22.4 L of volume

So, 2 moles of nitrogen gas will occupy [tex]=\frac{22.4L}{1mol}\times 2mol=44.8L[/tex] of volume

Hence, the volume of nitrogen gas at STP is 44.8 L.

Which of these would most likely happen to a species that is not able to adapt to a changing environment?

Answers

Answer:

If a species cannot adapt to the changes in their ecosystem, they may move to another location. If they will not move, the species may become threatened, endangered or extinct.

Explanation:

The way the question is worded, it sounds like there are options for you to chose from that you are not showing. I could help you out more if I actually knew the options.

Extinction is likely if conditions change faster than a species can evolve, and if members of that species lack the traits required to survive in the new environment.

What is an extinction ?

The death of all members of a species of plants, animals, or other organisms is referred to as extinction.

The primary cause of higher extinction rates is habitat loss. Other causes include habitat changes, commercial overexploitation of wildlife, the introduction of harmful nonnative species, pollution, and disease spread.

If a species is unable to adapt to changes in its ecosystem, it may relocate. The species may become threatened, endangered, or extinct if they do not move.

Thus, Extinction is likely if environmental conditions change faster than a species can evolve and members of that species lack the traits needed to survive in the new environment.

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How is a radioactive element different from a stable element?

Answers

A radioactive element has an unstable nucleus that emits particles in the form of alpha, beta, or gamma radiation. A stable element has a nucleus that does not emit such particles

Radioactive elements are the elements into which an atom is very unstable or highly reactive because it is having more energy in its nucleus. stable elements are those who have stable and there shell are properly filled with electrons.

What are radioactive elements and stable elements?

Most radioactive chemical elements have one or more radioactive isotopes on the other hand  some chemical elements only have one type of radioactive isotopes.

A radioactive element has an unstable nucleus that emits particles in the form of alpha, beta, or gamma radiation and stable element have stable nucleus with no effect of any radiation or energy due to fully filled orbitals.

Bombarding of these radiations has to be done in the nucleus of the element after this the desired element will become a radioactive element. And there is no effect of these rays on stable elements beacuse they are unreactive to this.

The ray of alpha beta and gamma consists of some charges within them and they are radioactive radiations harmful to human eyes.

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what are binory compounds

Answers

Answer:

You meant binary compounds ryt?

Then,

Binary compounds are chemical compounds comprising of two distinct elements

what is the molerity of 4grams of sodium chloride in 3.800ml solution
a) 0.018 M
b) 0.018 Mol
c) 1.052 M
d) 1.052 Mol

Answers

Answer: 0.018 M

Explanation:

The answer is 0.018M

What is caffeine atomic number?
No links​

Answers

Answer:

Caffeine has no atomic number

Explanation:

Caffeine is a compound, not an element. Therefore it cannot have an atomic number.

Kinetic energy CANNOT be converted into potential energy
True
False

Answers

Answer:

false

Explanation:

Answer:

False

Explanation:

Because if you shoot a arrow and go back and get it and use it again it is potential

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Eight hundred years ago a powerful king named Genghis Khan ruled an empire that stretched from eastern Europe to the Sea of Japan and included all of China. His armies marched on China and Persia, and Khan was known as the greatest king since Alexander the Great.B According to legend, one day Khan gathered some friends and servants and rode into the countryside to search for game. Everyone in the party had high hopes of bringing home enough meat for a great feast that night. In those days it was customary to bring a trained hawk along on hunting trips. On command, the hawk would leave its masters wrist and fly high into the sky. Then, using its exceptional eyesight, the hawk would spot its prey and swoop down on it, so the hunters would know where to follow.C On this trip the king had brought his favorite hawk. It was a hot summer day, and although the hunting party rode for hours, they had no luck finding game. At dusk they gave up and turned toward home. 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