Can someone help? Thank you.

Can Someone Help? Thank You.

Answers

Answer 1

that' the answer i don't need an explanation


Related Questions

If the vapor pressure of water at 20.0 o C is 17.535 torr, and the atmospheric pressure measured by a barometer was 757.3 torr, what is the partial pressure of H2 in the gas mixture in a buret

Answers

Answer:

f the vapor pressure of water at 20.0 o C is 17.535 torr, and the atmospheric pressure measured by a barometer was 757.3 torr, what is the partial pressure of H2 in the gas mixture

Partial pressure of H2 in gas mixture is :

739.765 torr .

Explain total pressure?The overall pressure ptot is the total of all pressures in a reference system. This pressure, according to Bernoulli (see Fluid mechanics), consists of the static pressure p, the dynamic pressure pdyn, and the geodetic component ( g z) that exists in a fluid along a stream line in a frictionless flow.The total pressure of a gas mixture is the sum of its component gases' partial pressures: Ptot = ∑Pi = P1 + P2 + P3... ntot = total number of moles in the gas mixture (the sum of all ni).

Total  pressure of mixture =

Partial of hydrogen + Partial pressure of oxygen

Partial of Hydrogen = Total pressure - partial   pressure  of  oxygen

Here total pressure = 757.3 torr

Partial pressure of oxygen = 17 . 535 torr

Total pressure = 757 . 3 - 17 . 533

                        = 739.765 torr.

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Aqueous sodium phosphate and aqueous iron (III) chloride react to produce aqueous sodium chloride and solid iron (III) phosphate.

Answers

Answer:

this one is hard

Explanation:

but it's iron because the sodium so yea there u go.

WILL BRAINLIST! NEED ANSWER!

• Why is it important to recycle metals?

A. to maintain sustainability
B. to create more tailings
C. to make sure ore remains renewable
D. to make it easier to extract ore from the ground

Answers

It’s C

Recycling metal is considered an environmentally friendly practice since it eliminates the demand for raw (ore) metal and conserves valuable natural resources

Which phenomena does wind cause?

A)tides and waves

B)deep currents and tides

C)waves and surface currents

D)surface currents and deep currents

HELP PLEASE ILL GIVE OUT BRAINLIEST

Answers

A) tides and waves.

The phenomena which  wind causes  are waves and surface currents.

What are surface  currents?

Surface currents are caused by  winds  which blow over the ocean water and result in creation of waves. Surface currents  are horizontal streams of water which are capable of  flowing thousands of kilometers and can reach great depths.

Surface currents play a major role in determining the climate all over the world. They are influenced by three major factors 1) overall global wind patterns 2)rotation of earth 3)shape of ocean basins . When a surface  current collides with the land it  changes the direction of currents.

Because of surface currents the global climate has warmer water  from equator to the cooler parts of the ocean  as they transfer heat energy.

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What equipment is generally used to make lyophilized medications suitable for administering to the patient? a) Test tubes or sterile ampules O b) Petri dishes and sterile droppers c) Sterile syringes or graduated cylinders d) Measuring cups and clean, warm water

Answers

C is the correct answer

How many molecules are there in an ideal gas with a volume of 7.27 L at STP?
number of molecules:

Answers

Answer:

n = 0.324 mol

Explanation:

PV = nRT

STP:

273.15K and 101.325kPa

n = PV/RT

n = (101.325kPa)(7.27L)/(8.314 L kPa/mol K)(273.15K)

n = 0.3243693408 mol

n = 0.324 mol

Hope that helps

describe an experiment that would show that intramolecular forces (attractions between atoms within molecules) are stronger than intermolecular forces (attractions between molecules).

Answers

Answer:

Molecules don’t have to collide with each other in order to experience intermolecular forces.

Molecules with permanent dipoles, held in fixed orientation, such as water molecules in the solid state (ice), interact with a potential proportional to the inverse cube of distance. This intermolecular force always exists, no matter how far apart the molecules are; every water molecule interacts with every other water molecule. However, because it diminishes rapidly with distance, it tends to only be important at short distances. (In contrast, the potential between two ions goes as 1/r, and that between an ion and a dipole goes as 1/r^2.)

The van der Waals forces, of which London dispersion forces are the most important, are described by a potential proportional to the inverse sixth power of distance. Theoretically, those forces are always operating between any two atoms or molecules, but again, only become important at short distances.

Explanation:

hope this helps

list 2 underlying causes of water pollution

Answers

Answer:

industrialization and rapid human population growth.

Explanation:

Hope this helps

Answer:

Water Pollution

Explanation:

Dumping industrial waste in ocean

Accidental oil leakages

How many atoms are present in a 0.600- mole sample of gold?

Answers

3.612*10^23atoms I think

What types of orbitals are found in the third energy level?

Answers

Answer:

1 s-orbital, 3 p-orbital and 5 d-orbital

Answer:

there are a total of nine orbitals in a third energy level

Explanation:

Gold has a specific heat of 0.126 J/g.C. Copper has a specific heat of 0.386 J/g C. Which of the two metals would require more
heat energy to raise the temperature of the same weight of metal by 10.5C?

Answers

Answer:

The copper, because its specific heat is higher, meaning it takes more heat (Joules) per gram to raise the temperature 1 degree Celsius.

Explanation:

non-protein amino acid (A) orithine (B) homocysteine

Answers

Answer:

Homocysteine is though to be a non-protein animo acid. however in vintro studies suggest that Homocysteine is likely to be incorporated by inderict

why brain remembers picture better than words?​

Answers

Answer:

your brain processes ever detail in a picture rather than words for for example a picture of something words doesn't describe it as well as the picture could.

humans respond and process images way better then text. 60,000 times faster. our brains are just wired that way and pictures are coded more easily and can be retrieved symbolic mode , while the dual coding process using is more difficult for both ways retrieval and processing

A candle is placed between a concave mirror and its focal point.
Which two of the following best describe the image?
O A. Enlarged
B. Virtual
C. Reduced
D. Real

Answers

Virtual and enlarged..............

What grade are you in btw ?

Which of these challenges is unique to the process of designing prostheses as opposed to engineering other technologies?

- Knowing how a material will fail
- Using the engineering process
- Identifying a need for the technology
- Predicting how a technology will interact with human tissue

Answers

Answer:

predicting how a tech will interact with human tissue.

Explanation:

thats not really common except for in the medical field.

The challenge that is unique to the process of designing prostheses as opposed to engineering other technologies is Predicting how a technology will interact with human tissue. The correct option is option 4.

What is Prosthetic Design?

Prosthesis design is typically undertaken by shaping wax on a plaster replica of the patient's anatomy. Realism is predominantly achieved through the prosthetist's ability to interpret the correct location and physically recreate the anatomical shape and detail.

Prosthetic applications are an example of the intersection of design, technology and science.

Therefore, The challenge that is unique to the process of designing prostheses as opposed to engineering other technologies is Predicting how a technology will interact with human tissue. The correct option is option 4.

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what is the mass number of an atom that has six protons. six electrons, and eight neutrons?

Answers

Mass number is the sum of the total number of nucleons (neutrons + protons) present in the atom.

Mass number = Protons + Neutrons

Mass number = 6 + 8

Mass number = 14

_______

Hope it helps ⚜

help please I'll mark you as a brainliest promise.​

Answers

Answer:

Law of the Sea Treaty

LOST Local Option Sales Tax (special purpose tax)

LOST Linux One Stanza Tips

LOST Liberty Owners Special Team

LOST Looking Over Strange Terrain :-)

LOST Line Of Sight Tasking

Explanation:is this what you meant?

Which law states that energy cannot be created or destroyed, but can change from one form to another?


- the law of conservation of energy
- the law of conservation of matter
- the law of gravity
- the law of motion


answer - (the law of conservation of energy)

Answers

Answer:

the law of conservation of energy

Please answer!!
No links.
Picture is included!

Answers

Answer:

c

Explanation:

Define atomic numbers and mass numbers

Answers

Atomic numbers is the number of a chemical element in the periodic table and the mass number is the total number of protons and neutrons in an atom

Answer:

1). Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.

2) In contrast, the number of neutrons for a given element can vary. Forms of the same atom that differ only in their number of neutrons are called isotopes.

3) Together, the number of protons and the number of neutrons determine an element’s mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

In lab a student is asked to mix solutions of copper (II) sulfate and potassium phosphate. The
student wants to produce exactly 3.75 grams of precipitate. Based on the desired outcome
determine the volume of 1.25M copper (Il) sulfate and 0.75 M potassium phosphate required.

Answers

I believe the volume would turn out to be 2.35M but i could be wrong

How do the terms genotype and phenotype relate?
O Both are sets of alleles that define traits.
O An organism's phenotype leads to its genotype.
O An organism's genotype leads to its phenotype.
Both are terms for observable traits

Answers

Answer:

c is the

Explanation:

milk is heterogeneous mixture why​

Answers

Answer:

Milk is essentially a colloidal dispersion of fat in water. ... However, the fact remains that the fat and water components cannot be mixed together from a solution. There are therefore, two distinct immiscible liquid phase's present, which is why it is a heterogeneous mixture.

A solution that contains 3 grams of solute dissolved in 100 millimeters of solution is:
a) 3% m / m
b) 3% m / v
c) 10% m / v

Answers

Answer:

the answer is correct part another is a part

Explanation:

c part

If 9 moles of P203 are formed, how many
moles of O2 reacted?

Answers

9 x 3 = 27
27 moles of O reacted
27 / 2 = 13.5 O2 reacted
round up to 14 moles of O2


I NEED HELP!!OMG OMG OMG

Answers

Winter is purple, spring is blue, summer is orange, fall is green.

a meter is defined as 100. cm. How many significant digits are there in the value

Answers

Answer:

3 significant figure

Explanation:

Trailing zeros in a number are significant ONLY is the number contains a decimal point.

So if it was 100cm with out the decimal point would only have 1 significant figure.

what substance changes directly solid to gas
3 examples​

Answers

Answer:

Air FreshenersSpecialized PrintersMoth Balls

                       

The process in which solids directly change to gases is known as sublimation. This occurs when solids absorb enough energy to completely overcome the forces of attraction between them. Dry ice is an example of solids that undergo sublimation.

Octane has a density of 0.703 g/ml. Calculate the mass of CO2(g) produced by burning one
gallon of octane. There are 3.79 liters to one gallon.

Answers

The mass of CO₂ gas produced during the combustion of one gallon of octane is 8.21 kg.

The given parameters:

Density of the octane, ρ = 0.703 g/mlVolume of octane, v = 3.79 liters

The mass of the octane burnt is calculated as follows;

[tex]m = \rho V\\\\m = 0.703 \ \frac{g}{ml} \times 3.79 \ L \ \frac{1000 \ ml}{L} \\\\m = 2,664.37 \ g[/tex]

The combustion reaction of octane is given as;

[tex]2C_8H_{18} + \ 25O_2 \ --> \ 16CO_2 \ + \ 18H_2O[/tex]

From the reaction above:

228.46 g of octane -------------------> 704 g of  CO₂ gas

2,664.37 of octane --------------------> ? of CO₂ gas

[tex]= \frac{2,664.37 \times 704}{228.46} \\\\= 8,210.3 \ g\\\\= 8.21 \ kg[/tex]

Thus, the mass of CO₂ gas produced during the combustion of one gallon of octane is 8.21 kg.

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Which best defines color? (1 point)
a physical property of matter related to how a material interacts with different wavelengths
of light
a chemical property of matter related to how a material interacts with different wavelengths
of light
O a physical property of matter related to a material's ability to reflect light
O a chemical property of matter related to a material's ability to reflect light

Answers

Answer:

O a physical property of matter related to a material's ability to reflect light

Explanation:

Color is a physical property of matter.

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