when you pass the foodstall you can smell what is cooking , explain why this happen by particle theory

Answers

Answer 1

Answer: this occurs due to diffusion, the process by which particles move freely to fill up available space. the particles of the gases (from the food)are in constant motion thus they move freely until they reach your nose

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What are some physical properties in a water hat?

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Use Socratic for helps

Physical properties. O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Water is a tasteless, odorless liquid at ambient temperature and pressure. Liquid water has weak absorption bands at wavelengths of around 750 nm which cause it to appear to have a blue colour.

Now, gimme brainliest

write the equation for the combined gas law using temperature in degree Celsius. explain why the Kelvin scale is convenient

Answers

Answer:

$(PV)/(T)=k$

Explanation:

Combine Gas law is a combination of three gas laws which are Boyle's Law, Charles' Law, and Gay-Lussac's Law.

Combine gas law states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant.

Hence the equation becomes:

$(PV)/(T)=k$

where P = pressure,

V = volume,

T = absolute temperature,

k = constant.

Now we know that Kelvin = °Celsius + 273

For all gas law problems it is necessary to work in the Kelvin scale because temperature is in the denominator in the combined gas laws (P/T, V/T and PV/T) and can be derived in the ideal gas law to the denominator (PV/RT) . If we measured temperature in Celsius we could have a value of zero degrees Celsius and this would solve as no solution, as you cannot have zero in the denominator.

However, if we reached zero in the Kelvin scale this would be absolute zero and all matter would stop and therefore there would be no gas laws to worry about.

what is the ratio of the rate of effusion of helium (atomic mass 4.00 amu) to that of oxygen gas (molecular mass 32.0 amu)?

Answers

Answer:

3 : 1

Explanation:

Let the rate of He be R1

Molar Mass of He (M1) = 4g/mol

Let the rate of O2 be R2

Molar Mass of O2 (M2) = 32g/mol

Recall:

R1/R2 = √(M2/M1)

R1/R2 = √(32/4)

R1/R2 = √8

R1/R2 = 3

The ratio of rate of effusion of Helium to oxygen is 3 : 1

How do light technologies typically produce color images?A) by manipulating the angles at which light enters a lens
B) by energizing light waves with electric currents
C) by combining light of different frequencies
D) by concentrating light into a very small range of wavelength

Answers

How do light technologies typically produce color images? Light technologies typically produce color images by manipulating the angles at which light enters a lens. The answer is letter A.

Answer:

C) By combining light of different frequencies. Hope this helps!

How do vacuoles in the animal cell differ from those in the plant cell?

Answers

The main difference is that in a plant cell there is only one vacuole while in an an animal cell there are many. but the size is drastically different also.

Answer:

Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Explanation:

The skeletal part of the musculoskeletal system:a.produces facial expressions.
b.eliminates wastes from the body.
c.protects the organs of the body.
d.helps the body to create heat.

Answers

Out of those ones, im sure its c. It's definitely not b or d. It allows motion but also protects vital organs. :)

protects the organs of the body

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