Will give brainliest please help!!

Will Give Brainliest Please Help!!

Answers

Answer 1

Answer:

I think it's B so maybe


Related Questions

A baby chicken has feathers on its feet that are similar to that of its parents. Where are the instructions stored that provide information for a baby chicken’s feathery feet? A) In cytoplasm inside cells B) On genes within chromosomes C) On the cell membrane Eliminate D) In the mitochondria

Answers

Answer:

B) On genes within chromosomes

Explanation:

Answer:

B) On genes within chromosomes

B) A company president would like to offer a 4.00 L cylinder containing 500 g of chlorine in the new catalog. The cylinders you have on hand have a rupture pressure of 40 atm. Use both the ideal gas law and the van der Waals equation to calculate the pressure in a cylinder at 25°C. Given a = 6.58 L2 atm mol-2 and b = 0.056 L mol-2, Cl =35.5. (5 marks)

Answers

Answer:

43.1atm is the pressure using gas law and 27.2atm using Van der Waals Law.

Explanation:

Ideal gas law is:

PV = nRT

Where P is pressure in atm

V is volume = 4.00L

n are moles of the gas (For chlorine Molar Mass: 70.90g/mol):

500g * (1mol / 70.90g) = 7.052 moles

R is gas constant = 0.082atmL/molK

T is absolute temperature = 25°C + 273 = 298K

To solve the pressure, P:

P = nRT/V

P = 7.052mol*0.082atmL/molK*298K / 4.00L

P = 43.1atm is the pressure using gas law.

Van der Waals equation is:

[tex]P + a(\frac{n}{V})^2 * (V-nb) = nRT[/tex]

Where a is 6.58L²atm*mol⁻²

b = 0.056Lmol⁻²

Solving for pressure:

[tex]P + a(\frac{n}{V})^2 = \frac{nRT}{(V-nb)}[/tex]

[tex]P = \frac{nRT}{(V-nb)}-a(\frac{n}{V})^2[/tex]

[tex]P = \frac{7.052mol*0.082atmL/molK*298K}{(4.00L-7.052mol*0.056L*mol)}-6.58L^2mol^{-2}(\frac{7.052mol}{4.00L})^2[/tex]

P = 172.323 / 3.6051 - 20.4866

P = 27.2atm using Van der Waals Law

What relates moles of 1 substance to another in a chemical reaction?

Answers

Answer:

Chemical reactions list reactants and products in molar amounts, not just molecular amounts. We can use the coefficients of a balanced chemical equation to relate moles of one substance in the reaction to moles of other substances

Explanation:

Help me get it right and no links

Answers

Answer:

i think the second answer " fish migration might be prevented" might possibly be your answer

How many moles are in 8.0 gram sample of C3H4

Answers

Answer:

0.18 mol C₃H₈

Explanation:

to find the mole you have to convert the 8.0grams into moles.

8.0g C₃H₈        1 mol C₃H₈

       1               44.0g C₃H₈

*Pretend that those are a table*

I got 44.0g because Carbon is 12.0g you multiply that 3 times because it has a subscript of 3 and do the same for Hydrogen (1.0 x 8) then add those which would be 44.0g.

1 mol of C₃H₈ = 44.0g C₃H₈

now just mulitply and divide them.

8.0g x 1 = 8.0

1 x 44.0g = 44.0

8.0/44.0 = 0.18 mol C₃H₈

Please Answer all 4 questions and i will give brainliest!

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You haven't added the 4 questions, so when you upload them, i'll answer.

How many grams equal 4.3 x 1024 atoms of oxygen (O2)?

Answers

Answer:

https://socratic.org/questions/how-many-grams-are-in-1-25-x-10-22-atoms-of-oxygen#403337

Explanation:

Help please!!!!!!!!!! Both questions!!!!

Answers

on the first one it’s diffusion.

on the second on its false.

Which process is exothermic?
a) the vaporization of water b) the freezing of water c)the sublimation of dry ice d ) the boiling of liquid nitrogen

Answers

Answer:

Freezing of water

Explanation:

When water becomes a solid it releases heat into its surroundings (warming it up).

A supersaturated solution is said to contain ​

Answers

Explanation:

A solution that contains more than the maximum amount of solute that is capable of being dissolved at a given temperature.

I hope it helps

Answer:

A supersaturated solution is said to contain more solute than it can dissolve at that given temperature.

How much concentrated 15.54 M sulfuric acid is need to prepare 6.1 mL of a 2.28 M solution?

Answers

Answer:

0.895 mL

Explanation:

Using the formula;

C1V1 = C2V2

Where;

C1 = initial concentration (M)

C2 = final concentration (M)

V1 = initial volume (mL)

V2 = final volume (mL)

According to the information provided in this question;

C1 = 15.54M

V1 = ?

C2 = 2.28M

V2 = 6.1 mL

Using C1V1 = C2V2

V1 = C2V2 ÷ C1

V1 = (2.28 × 6.1) ÷ 15.54

V1 = 13.908 ÷ 15.54

V1 = 0.895 mL

HELPPPPPP!!!! ILL MARK YOU BRAINLIEST!

A cube has a mass of 100g and each side is 5cm. What is its density?

Answers

The answer is 20 because density = 100g/5cm

is the answer A or B?

Answers

Answer:

Letter D

Hope I helped!

♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥

Males have glands called testes that release the hormone known as _______________. a estrogen b epinephrine c testosterone d toblerone

Answers

Answer:

testosterone is released from their testes!

who discovered electron​

Answers

Answer: Electricity

Answer:

J.J Thomas in 1897

a force of attraction between objects that is due to their masses and distance between objects
a. gravity
b. weight
c. mass

Answers

Answer:

the answer is gravity

hope this helps

Below is a chemical equation. Which of the following are identified by the blue arrows?

Captionless Image
atomic numbers
coefficients
products
subscripts

Answers

it’s the subscripts. I know this for sure

Which of the following is not a reason for extinction?

a change in climate

a change in predation rate

the ability to breed successfully

loss of habitat

Answers

Answer:

the ability to breed successfully

Explanation:

Answer:

the ability to breed successfully

Explanation:

the more offspring's an organism has, the less chance of extinction would happen. I hope that helped bestie

During a phase change, such as melting or boiling, the kinetic energy __. Highlight correct answer

Answers

Answer: During a phase change, such as melting or boiling, the kinetic energy increases.

Explanation:

Kinetic energy is the energy obtained by the molecules of a substance due to their motion.

When phase change such as melting or boiling takes place then it means heat is absorbed by the substance. As a result, their molecules more even more rapidly from one place to another due to which more number of collisions take place.

Hence, a change in phase of substance occurs as kinetic energy increases in melting or boiling process.

Thus, we can conclude that during a phase change, such as melting or boiling, the kinetic energy increases.

Name two metals which will not liberate hydrogen from
dilute tetraoxosulphate(vi) acid.​

Answers

Copper (Cu) and silver (Ag) would not liberate hydrogen because they are less reactive than hydrogen since their standard reduction potential is higher.

To solve such this we must know the concept of double displacement reaction. Therefore, copper (Cu) and silver (Ag) would not liberate hydrogen from dilute tetraoxosulphate(vi) acid.

What is chemical reaction?

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Copper (Cu) and silver (Ag) would not liberate hydrogen because they are less reactive than hydrogen since their standard reduction potential is higher.

Therefore, copper (Cu) and silver (Ag) would not liberate hydrogen from

dilute tetraoxosulphate(vi) acid.

Learn more about the chemical reactions, here:

https://brainly.com/question/3461108

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When precipitation falls in summer, sometimes wind pushes it back up into freezing temperatures before falling again. What will most likely occur when this happens?

A.
hail will fall

B.
rain will fall

C.
sleet will fall

D.
snow will fall.

Answers

Answer:

A

Explanation:

hail will fall push it back up making it bigger comes back down

he diagram shows a device that uses radio waves.

Two radio towers. The towers are equal distance apart with an arrow between them. The left tower is labeled X. The right tower is labeled Y. The arrow is pointing from Tower X to Tower Y.
What is the role of the part in the diagram labeled Y?

modulate, amplify, and send out waves
capture, amplify, and demodulate waves
change the amplitude and frequency of waves
change the pulse and phase of waves

Answers

Answer:

b

Explanation:

what do you call the materials in which electricity pass easily?
a. insulator
b. conductors
c. non conductors
d. metallic​

Answers

Answer:

Conductors

Explanation:

How many hydrogen atoms are present in an alkyne with 5 carbon atoms?

Answers

Answer:

cuatro

Explanation:

ino->4

Alkynes are triple bonded hydrocarbons. There are 7 hydrogen in an alkyne with 5 carbon atoms. This compound can be named as pentyne.

What are alkynes?

Alkynes are hydrocarbons with one triple bond between two carbon atoms. alkynes are unsaturated compounds. Alkynes are named with the suffix 'yne' like ethyne, propyne etc..

There are three types of hydrocarbons namely, alkanes, alkenes and alkynes. Alkanes are saturated hydrocarbon having single bond between carbon atoms. Eg. methane , ethane etc all having suffix of 'ane'. Alkenes are unsaturated hydrocarbons with double bond between two or more carbon atoms.

Alkenes are named with the suffix 'ene'. Hence, the names become ethene, propene etc. The prefix for the names of hydrocarbons is based on the number of carbons. meth for 2, eth for 2 prop for 3, but for 4 and pent for 5 and so on.

The valency of carbon is 4 and it will bind to four other atoms. When it forms triple bond with a carbon it can bind to one hydrogen only. If it is a middle carbon then it dont have a hydrogen since either side will be carbons.

Thus for a 5 carbon alkyne, there will be total 7 hydrogens and the compound is pentyne.

To find more on pentyne, refer here:

https://brainly.com/question/15022928

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I really need help with this chemistry assignment multiple choice

Answers

Answer:

b option to is correct and answer bro

Which field of study examines homologous structures?
A) Genetics
B) Embryology
C) Comparative Anatomy
D) Physics

Answers

The answer should be B

If an organism ingests 950.0 g of glucose (C6H12O6) in its lifetime, how many grams of carbon dioxide (CO2) will be released? (molar mass C6H12O6 = 180.156 g/mol) (molar mass CO2 = 44.009 g/mol)

Answers

Answer:

1392. g CO2

Explanation:

Mg (s) + 2 HCl (aq) --> MgCl2 (aq) + H2 (g)

Use the balanced chemical equation above to determine the number of moles of hydrogen gas that would be produced if 3.50 moles of solid magnesium reacted. please show all work and record your answer with proper units and significant figures.
Pls help

Answers

Answer:

2Mg + 4HCl (aq) --> 2 MgCl2 (aq) + H2

Explanation:

balanced...

What is a group of words called that contains elther a subject or a verb, but not both?

Answers

Answer:

Phrase

Explanation:

Phrases don't have both, but clauses do.

WORTH 20 POINTS!! Need answer ASAP

Answers

Answer:

i cant see the image im good at chem if you can write it down in the comments ill answer it

Explanation:

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