Which of the following has the highest pH?

A. 1 M HCl
B. 0.01 M HCl
C. 0.1 M HCl
D. 0.001 M HCl

Answers

Answer 1

Answer: D

Explanation: pH = - log( c). If c= 1.0 M. PH = 0, if c=0.001 M. PH = 3

Answer 2

Answer:b

Explanation:

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Related Questions

What does efficient mean in your own words

Answers

Answer:

llo

Explanation:

efficent: well orgainzed, completed with mimumin amount of effort

capable is the correct answer accept it surely

Given the following balanced equation, determine the rate of reaction with respect to [SO3]. If the rate of O2 loss is 3.56 x 10-3 M/s, what is the rate of formation of SO3?

Answers

Answer:

7.12 × 10⁻³ M/s

Explanation:

Step 1: Write the balanced reaction

2 SO₂ + O₂ ⇒ 2 SO₃

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of O₂ to SO₃ is 1:2.

Step 3: Calculate the rate of formation of SO₃

The rate of loss of O₂ is 3.56 × 10⁻³ mol O₂/L.s. The rate of formation of SO₃ is:

3.56 × 10⁻³ mol O₂/L.s. × 2 mol SO₃/1 mol O₂ = 7.12 × 10⁻³ mol SO₃/L.s

Why didn't you just clean the spill with water?

Answers

Answer:

if you did it would probably make it bigger...

Explanation:

:)

Take your time please.​

Answers

Answer:

1. Dependant Variable

2. Scientific Method

3. Data

4. Consistency

5. Metric Balance

6. Mean

7. Technology

8. Dependant Variable

9. Hypothesis

10. Spring Scale

Explanation:

Hello! I hope this helped and please correct me if some are wrong. I did my research and matched them. Have a good one!

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Answer:

dependent variablescientific methodDataconsistency metric balancemeantechnologydependent variablehypothesisspring scale

hope it is helpful to you

What would happen to our solar system if the Sun had an even greater mass than it currently does?

Answers

Answer: If the Sun had an even greater mass then it currently does, it would have a larger gravitational pull and since it's heat would be closer to Earth, both by magnitude and gravity, life on Earth wouldn't be possible and life on Mars would be reality. Also, when the sun would explode, it would have a larger supernova and possibly create a white dwarf (something that only happens to red supergiant stars when they die), with a gravitational force so strong it wold have two beams of light coming out it's north and south poles (like a black hole).

I hope this helps!

Can the decay half-life of a radioactive material be changed?

Answers

Answer:

Yes.....

Explanation:

the decay half-life of a radioactive material can be changed. Radioactive decay happens when an unstable atomic nucleus spontaneously changes to a lower-energy state and spits out a bit of radiation. ... It is impossible to predict when an individual radioactive atom will decay.

what effect does hybridization have on bonds

Answers

Effect of Hybridisation on Single, Double and Triple Bond Lengths of Carbon.

Please tell 4 strong alkalis and 4 weak alkalis

Answers

Red: weak

Orange: Strong

can someone help with this please. i will give brainliest

Answers

Answer:

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light.

The electromagnetic radiations consist of radio waves, microwaves, infrared ,Visible , ultraviolet, X rays and gamma rays arranged in order of increasing frequency and decreasing wavelengths.

The visible reagion contains Violet , Indigo , Blue , Green , Yellow , Orange and Red in order of increasimg wavelength and decreasing frequency.

A solution contains 6 mg isopropanol dissolved in 2 kg H2O. The isopropanol concentration is?

Answers

Answer:

the concentration of isopropanol is 3 ppm.

Explanation:

The isopropanol concentration is

As we know that

Concentration = mass isopropanol ÷mass of water

= 6 mg ÷ 2 kg

= 3 mg/Kg

Now convert 3 mg/Kg to ppm.

As we know that

1 mg/Kg = 1 ppm

So,  

 3 mg/Kg = 3 ppm

Hence, the concentration of isopropanol is 3 ppm.

Will give brainlist please help

Answers

Staphylococcus

............

I am an element that has 4 valence electrons that are present in my third energy level. Who am I?

Answers

Answer:

silicone (Si) is the answer

What is the electron configuration for
beryllium (atomic number = 4)?
А
B
1s22s
2.
2s22p
2

Answers

Answer:

1s22s2

Explanation:

Water’s unique properties, high heat capacity, high density, solid phase less dense than liquid phase can be attributed to
A. The shape of the molecule
B. The polarity of the molecules and hydrogen bonding between molecules.
C. The covalent oxygen hydrogen bonds in the molecule.
D. It’s formula h2o.

Answers

Answer:

B- The polarity of the molecules and hydrogen bonding between molecules.

Explanation:

Hope this helps:)

Write a skeleton equation for the reaction in which aqueous sodium chloride
reacts with aqueous silver nitrate to produce aqueous sodium nitrate and solid
silver chloride.

Answers

Answer:

Explanation:according to question:

. Nacl (aq) + AgNO3 (aq) --> AgCl

(s) + NaNO3 (aq).balanced.

How much Oxygen would be required to react with 101 g of Methane?
A.101 g
B.202 g
C.303 g
D.404 g

Answers

Answer:

404g

Explanation:

is Pb --> PbSO4 reduction half reaction?​

Answers

Answer:

No its is the oxidation half

Explanation:

Because Pb lost [tex]2e^{-}[/tex]

and oxidation is losing, I abbreviate it in (OIL) not oil that used in kitchen

OIL=Oxidation Is Losing electrons

Why do women have more reactions to vaccines?

Answers

☆Answer☆

Experts say this isn’t unusual with vaccinations because the estrogen in women’s bodies is designed to elicit a stronger immune response.

Hope it helps you

Happy Learning

How many kilograms of phosphorous are in a sample containing 1.00E31 phosphorous atoms?

Answers

Answer: [tex]5.15\times 10^5kg[/tex]

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number of particles.

To calculate the number of moles, we use the equation:

Putting in the values we get:

[tex]\text{Number of moles}=\frac{1.00\times 10^{31}}{6.023\times 10^{23}}=0.166\times 10^{8}moles[/tex]

1 mole of phosphorous [tex]P[/tex] weighs = 31 g

Thus [tex]0.166\times 10^8[/tex] moles of phosphorous [tex]P[/tex] weigh=[tex]\frac{31}{1}\times 0.166\times 10^8=5.15\times 10^8g=5.15\times 10^5kg[/tex]

 

A student performed a similar experiment we have done, with Ag and O to produce silver oxide.
Mass of crucible and lid: 29.307 g
Mass of crucible, lid, and silver: 30.958 g
Mass of crucible, lid, and silver oxide: 31.080 g
Use the above data to calculate the moles of the metal used in this experiment. your answer must include correct significant figures and unit.

Answers

Answer:

0.0153 mol

Explanation:

Mass of crucible and lid: 29.307 g

Mass of crucible, lid, and silver: 30.958 g

Number of moles = Mass /Molar mass

Mass of Silver = Mass of crucible, lid, and silver  -  Mass of crucible and lid

Mass of siilver = 30.958 g - 29.307 g

Mass of silver = 1.651 g

Molar mass of silver = 107.868 g/mol

Number of moles = 1.651 g / 107.868 g/mol

Number of moles = 0.0153 mol

Which of the following pairs of elements would most likely form a molecular covalent bond?

Answers

Answer:

Oxygen and chlorine

Explanation:

oxygen and chlorine are most likely to form covalent compounds

Which of these is a carbohydrate?

1. C6 H12 O6
2. C6 H6 O12
3. C6 H13 O2 N
4. C3 H7 O2 Ns

Answers

Answer:

C6H12O6

Glucose

Explanation:

Glucose is a monocarbohydrate

carbohydrates always have only C, H, and O

brainliest plz

.
In an investigation, the volume of a material is measured
as 80.0 cm3 and its mass is measured as 253 g. Which
calculation of density correctly uses the precision rules:
3.1625 g/cm3, 3.163 g/cm3, 3.16 g/cm3, 3.2 g/cm3, or 3
g/cm3?

Answers

Answer:

3.2 g/cm3

Explanation:

Mass = 253 g

Volume = 80.0 cm3

Density = Mass / Volume = 253 g / 80.0 cm3

Density = 3.1625 g/cm3

The precision rule means the answer must not have more significant values than the value with the least number of significant figures. In this case, the value with the least number of significant figures is 80.0  with two signiificant figures. Hence;

Answer = 3.2 g/cm3

How many grams of iron can be extracted from 1.55 kg of iron(III) carbonate?

Answers

yes vrycdtyt day tvtvtvrs fbynunin

when 4.73g of solid was heated, the residue weighed 4.10g 320 cubic centimetre of gas( at RTP) was evolved. calculate the molecular mass of the gas​

Answers

Answer:

48 g/mol

Explanation:

Step 1: Calculate the mass of the gas (m)

According to the law of conservation of mass, the mass of the solid before the decomposition must be equal to the sum of the masses of the solid residue and the gas

mSolid = mResidue + mGas

mGas = mSolid - mResidue = 4.73 g - 4.10 g = 0.63 g

Step 2: Convert 320 cm³ to L

We will use the conversion factor 1 L = 1000 cm³.

320 cm³ × 1 L/1000 cm³ = 0.320 L

Step 3: Calculate the moles of gas (n)

The gas is at room temperature (298.15 K) and room pressure (1 atm). We can calculate the moles of gas using the ideal gas equation.

P × V = n × R × T

n = P × V/R × T

n = 1 atm × 0.320 L/(0.0821 atm.L/mol.K) × 298.15 K = 0.0131 mol

Step 4: Calculate the molecular mass of the gas (M)

We will use the following expression.

M = m/n = 0.63 g/0.0131 mol = 48 g/mol

Each person in a room is assumed to be producing carbon dioxide at the average rate of 0.0107 cfm (5.0 ml/s) and air with a CO2 concentration of 280 ppm is being supplied to the room at the rate of 6000 cfm (2.8 m3/s). It is desired to keep the concentration level of CO2 in the space below 1000 ppm. Assuming complete mixing, determine how many persons could occupy the room and not exceed the desired CO2 level.

Answers

Answer:

404 persons

Explanation:

To get n= number of persons

We use this formula

n = I(Dc - EaC)Eaf

I = 6000 = inflow rate

Dc = desired concentration = 1000

Eac = Exhaled air concentration = 280ppm = 0.00028

Exhaled air flow rate = Eaf = 0.0107

When we put values into the formula above

6000(0.001-0.00028)/0.0107

= 6000(0.00072)/0.0107

= 4.32/0.0107

= 403.7

= 404 persons

Why doesn't all soil look and feel the same? List 3 reasons

Answers

Answer:

all soil are also different due to how they were form

elements have similar characteristics?
Periodic TaBle
oF The Elements

Answers

Answer:

See attachment.

Explanation:

Elements that are in the same group will definitely possess similar characteristics because they tend to have the same valence electron which determines their reactivity.

On a periodic table, elements in the same group can be found arranged on the same column in the periodic table.

Therefore the two elements that have similar characteristics are those two elements you can see on the same column in group 2. See the two elements indicated in the attachment below.

A human ear is shaped in a way that focuses sound.

A. True
B. False

Answers

the Solution is the answer A.True

A :) have a nice day!

The bond angles around a carbon in a
triple bond are
and it
is
hybridized
A. 180, sp?
B. 120, sp
C. 180, sp
D. 120, sp?
Enter

Answers

A 180,sp is da answer

The bond angles around carbon in the triple bond are 180 degrees and it is sp hybridized. option B is correct

What is sp hybridization?

This hybridization process involves mixing the valence s orbital with one of the valence p orbitals to yield two equivalent sp hybrid orbitals that are oriented in a linear geometry.

The set of sp orbitals appears similar in shape to the original p orbital, but there is an important difference. The number of atomic orbitals combined always equals the number of hybrid orbitals formed.

The p orbital is one orbital that can hold up to two electrons. The sp set is two equivalent orbitals that point 120° from each other. The two electrons that were originally in the s orbital are now distributed to the two sp orbitals, which are half filled.

Therefore, due to the sp hybrid and 120-degree angle option B is correct

learn more about hybridization, here :

https://brainly.com/question/23038117

#SPJ2

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