One of the most important things you can do for yourself before you apply for a job is take a(n) ________ of your skills and experiences.

A.
mental picture

B.
photograph

C.
inventory

D.
memory

Answer: B. Ketone

Explanation: Another name for acetone is propanone, and it is the main ketone as it has the functional group in the middle, a CH3 on each side. Ketones have the C=O functional group.

Moles be n

[tex]\\ \rm\Rrightarrow PV=nRT[/tex]

[tex]\\ \rm\Rrightarrow n=\dfrac{PV}{RT}[/tex]

[tex]\\ \rm\Rrightarrow n=\dfrac{1.28(27.6)}{0.0821(302)}[/tex]

[tex]\\ \rm\Rrightarrow n=\dfrac{35.3}{24.8}[/tex]

[tex]\\ \rm\Rrightarrow n=1.42mol[/tex]

The number of moles of methane gas occupies in the given volume and pressure is 1.426 moles. It can be calculated using ideal gas law.

Ideal gas law relates the parameters temperature, pressure, volume and number of moles of  a gas by the equation given below:

PV = nRT.

Where, R is the universal gas constant equal to 0.082 L atm /(K .mol). This law is a combination of Boyle's law, Charles's law and Avogadro's law.

It is given that the pressure and volume of the gas is 1.28 atm and 27.6 liter respectively. Temperature is 29 degree celsius or 302 kelvin. Using these values the number of moles of methane gas is calculated as follows:

PV = nRT

n = PV/RT

Number of moles of methane n = (1.28 atm × 27.6 L) / ( 0.082 L atm /(K .mol) × 302 K )

= 1.426 moles.

Hence, the number of moles of methane gas in the given system is 1.426 moles.

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Answer:

The Earth's rotation means that we experience an apparent force known as the Coriolis force. This deflects the direction of the wind to the right in the northern hemisphere and to the left in the southern hemisphere.

Explanation:

Answer:

432m/s

Explanation:

The rms speed (u) is related to the temperature (T) and molecular weight (M) by the expression

u=

M

3RT

u=

40×10

−3

kg/mol

3×8.314J/molK×(27+273.15)K

u=432.2m/s

Hence, the rms speed is 432.2 m/s

hope this is helpful

The limiting reactant would be the ammonium sulfide and the amount of the excess manganese (IV) fluoride would be 1.96 grams

From the equation of the reaction:

[tex]MnF_4(aq)+2(NH_4)_2S(aq)- > MnS_2(s)+4NH_4F(aq)[/tex]

The mole ratio of [tex]MnF_4[/tex] to [tex](NH_4)_2S[/tex] is 1:2

Mole of 70 g [tex]MnF_4[/tex] = 70/130.93

                                 = 0.53 moles

Mole of 70 g  [tex](NH_4)_2S[/tex] = 70/68.154

                                       = 1.03 moles

Equivalent mole of   [tex](NH_4)_2S[/tex] = 0.53 x 2

                                                = 1.06 moles

Thus,   [tex](NH_4)_2S[/tex] seems to be limiting while [tex]MnF_4[/tex] is in excess.

Excess [tex]MnF_4[/tex] = 0.53 - 1.03/2

                          = 0.015 mole

Mass of 0.015 mole [tex]MnF_4[/tex] = 0.015 x 130.93

                                             = 1.96 grams

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Answer:

D

Explanation:

Heat sometimes gets "lost" when work is done

Answer:

The mass number in a nucleus is the combined number of protons and neutrons, so it's protons and neutrons, and A symbolizes it. So A is the number of masses, which is equal to the number of protons, that is the number of atoms that we symbolized by Z, plus the number of neutrons.

The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus. It is approximately equal to the atomic mass of the atom expressed in atomic mass units.

Answer:

Li: 2

H2O: 2

LiOH: 2

H2: 1

Explanation:

Good luck

Answer:

Decision making

Explanation:

A person who thinks before choosing is a person who makes decisions.

A, Scientists will use the structure of existing animals as a model :)

Answer:

Scientists will use the structure of existing animal as a model.

Explanation:

-lukelaws

please mark me brainliest I need one more please!!!

Answer:

It can be produced by heating K2SO4 with carbon (coke): K2SO4 + 4 C → K2S + 4 CO. In the laboratory, pure K2S may be prepared by the reaction of potassium and sulfur in anhydrous ammonia.

they simply don't have the same characteristics

Explanation:

An acid produces a hydroxonium ion as positive which is part of the reason why they are corrosive

Bases are less corrosive which is why they can neutralize an acid to give salt and water

Answer:which pictures?

Explanation:show the pictures first

answer: time

Explanation:

well the clouds are moving and the time is different or the seasons also make the background different

Answer:

I would go with

B. Surface water at the poles is dense because of low temperatures and high salinity.

i could be wrong tho.

Explanation:

The volume of the balloon is approximately 2652 liters.

Let suppose that flammable hydrogen behaves ideally. GIven the molar mass ([tex]M[/tex]), in kilograms per kilomole, and mass of the gas ([tex]m[/tex]), in kilograms. The volume occupied by the gas ([tex]V[/tex]), in cubic centimeters, is found by the equation of state for ideal gases:

[tex]V = \frac{m\cdot R_{u}\cdot T}{P\cdot M}[/tex]   (1)

Where:

If we know that [tex]m = 0.239\,kg[/tex], [tex]R_{u} = 8.314\,\frac{kPa\cdot m^{3}}{kmol\cdot K}[/tex], [tex]T = 273.15\,K[/tex], [tex]P = 101.325\,kPa[/tex] and [tex]M = 2.02\,\frac{kg}{kmol}[/tex], then the volume of the balloon is:

[tex]V = \frac{(0.239\,kg)\cdot \left(8.314\,\frac{kPa\cdot m^{3}}{kmol\cdot K} \right)\cdot (273.15\,K)}{\left(101.325\,kPa\right)\cdot \left(2.02\,\frac{kg}{kmol} \right)}[/tex]

[tex]V = 2.652\,m^{3}[/tex] ([tex]2652\,L[/tex])

The volume of the balloon is approximately 2652 liters. [tex]\blacksquare[/tex]

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Answer:

0.5298072502356179

Explanation:

Answer:

Explanation:

1. There are fire and flashes at the top of an active volcano. No fire nor flashes for inactive volcano.

2. Smoke and debris come off an active volcano. No smoke nor debris from inactive volcano.

3. Magma flows from top of active volcano. No magma from inactive volcano.

4. There can be snow on top of inactive volcano. Active volcano is too hot for that.

5. There are plants and other wild lives around an inactive volcano.

Answer:

The propane chemical structure, or chemical formula, is three carbon atoms branched with eight hydrogen atoms I.e C3H8

Answer:

4

Explanation:

2+2=4

Answer:

3

Explanation:

That's the answer

I hope it helps

Answer:

recognition, intrusion and distraction

Explanation:

Answer:

C. 6.99 moles

Explanation:

To convert molecules to moles we simply divide the given number of molecules by Avogadro's number, 6.022 x 10²³

Given number of molecules : 4.21 x 10^24

Number of moles : 4.21 x 10^24 / 6.022 x 10²³ = 6.99 moles ( rounded )

The answer is C

Answer:

Because chemists need to think outside the box for what they do, in other words, "science is not always black and white" which means science has color to it or many different aspects some of those which are not yet discovered and needs critical thinking chemists to figure out and discover.

Explanation:

(this was all in my own words and not actually cut and Paiste ○|￣|_ =3)

Answer:

The mass of 1 mole LiOH has been 24 g. Thus, option D is correct.

The mass of a compound present in a mole of sample has been equivalent to the molar mass of the compound. The molar mass of the compound has been the sum of the constituent in a formula unit.

Explanation:

pls mark brainless i mean brainliest!

Answer: 24 g

Explanation: