If a molecule diffusing through extracellular fluid travels 1 mm in 1 sec, how long will it take that molecule to diffuse 1 cm

Answers

Answer 1
Answer: given that the rate of diffusion is 1 mm per 1 second. then the time it travels in 1 cm can be solve using the formula
t = d / r
where d is the distance
r is the rate

first, 1 cm is equal to 10 mm

t = 10 mm / ( 1 mm / s )
t = 10 s

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7. A species is _ when its population has become so low that it is close to becoming extincta. Massive logging b. endangered c. pollutants d. population

pa help po,,,​

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Answer:

Endangered. The meaning of endangered is when a species declines in number- this might be because they are being eaten by another animal which has a higher popupayion, or perhaps because they are being hunted by humans for their meat or fur. Neither reason might be that their food or habitat has been destroyed b humans to create land for farming or housing. one example of name endangered species is Polar Bears: they like in the Antarctic where there is no land, simply ice. Due to humans causing climate change, the world is warming up and the ice is melting. This means polar bears are dying out because it would be too tiring to swim to find ice. For the same reason, other animals are dying in the Antarctic meaning that Poplar Bears have less to eat (being at the top of the food chain -no animal eats polar bears).

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

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Explanation:

Acids are the species which furnish protons (hydrogen ions) when dissolved in the water.

Bases are the species which furnish hydroxide ions when dissolved in the water.

Oxoacid is the acid which contains with at least one hydrogen atom which is  bonded to the oxygen atom in the molecule which can dissociate in the solution to give proton and the corresponding anion.

Oxoanion is the anion which is derived from oxoacid by the loss of hydrogen atom which is bounded to the oxygen.

A hydrate is the specie which contains water molecule or it's constituents in its solid structure.

A proton is a very tiny particle inside an atom. The mass of a proton isestimated to be 0.00000000000000000000000167 g. What is the mass of a
proton in scientific notation?

Answers

Answer:

1.67 ×10^-24g

Explanation:

counting from the first digit after the point till I got to the first non zero digit

Which si unit would be most appropriate for describing the lengeth of the shoe?

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Calculate the mass of the air contained in a room that measures 2.50 m × 5.50 m × 3.00 m (density of air = 1.29 g/dm3 at 25°C).

Answers

The mass of air in room as per given density is 53.2 kg.

To calculate the mass of air contained in a room, we can use the formula:

mass = density x volume

Here, the given density of air is 1.29 g/dm³ at 25°C. We can convert the dimensions of the room to decimeters (dm) by multiplying by 10:

Length = 2.50 m × 10 = 25 dm

Width = 5.50 m × 10 = 55 dm

Height = 3.00 m × 10 = 30 dm

Now, we can calculate the volume of the room by multiplying the three dimensions:

Volume = length x width x height

Volume = 25 dm x 55 dm x 30 dm

Volume = 41,250 dm³

Finally, we can use the formula to calculate the mass of air:

mass = density x volume

mass = 1.29 g/dm³ x 41,250 dm³

mass = 53,212.5 g or 53.2 kg

Therefore, the mass of air contained in the room is approximately 53.2 kg.

Learn more about density,here:

brainly.com/question/29775886

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Explanation:

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Oil is a fossil fuel used to run cars, heat up homes, and produce electricity. Oil can be removed from the bottom of the ocean through drilling. Drilling machines dig deep down into the Earth. When oil is found, pipes carry it to the surface. Sometimes, accidents happen that cause the oil to spill into the oceans. The oil can not only kill marine organisms, but when it reaches the surface of the water, some chemicals evaporate, become part of the atmosphere, and pollute the air.Based on the passage, which resources and organisms are affected by oil spills? Select three options.

a) air
b) land
c) water
d) birds in the air
e) trees on land
f) organisms in the water

Answers

The resources and organisms are affected by oil spillages are Air, Water, and Organisms in water

Effect of oil spillage

Oil spillage can cause to the general environment and the organisms in the environment.

Based on the passage, the resources and organisms are affected by oil spillages include the following;

  • Air
  • Water, and
  • Organisms in water

Learn more about oil spillage here: brainly.com/question/2880031

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Answer:

A,C,F/Air,water,orginisams in water

Explanation: