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7nadin3 [17]
3 years ago
13

Questions

Chemistry
1 answer:
ASHA 777 [7]3 years ago
7 0

Answer:

Explanation:

1. diffusion is a physical process when there is random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

2. Osmosis is the diffusion of water where molecules of water move passively (without energy) from high concentration to low concentration. eg: the way water rushes into a sponge.

3. Active transport moves particles from low to higher concentration. The difference between diffusion and active transport is diffusion does not require energy (eg: oxygen moving from the airways to the lungs - there is very little oxygen in the lungs but lots in the air).  whereas active transport does require energy (eg: when plants take up nutrients from the soil. The soil does not have a large concentration of nutrients, but the plant does)

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train travel from hong kong to beijing it traveled at an average speed of 160 km/m in the first 4 hours. after that it traveled
Nonamiya [84]

Answer:

7 hours

Explanation: step 1. 160x4=640

step 2. 1180-640=540

step 3. 540÷180=3

step 4. 3+4=7

5 0
3 years ago
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How many moles of aluminum oxide are produced when 6 moles of oxygen gas react?
siniylev [52]

Answer:

4 moles of aluminum and 6 moles of oxygen are produced

4 0
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Is methylene chloride more or less dense than water?
horsena [70]
Methylene chloride is less dense than water
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Mount Everest is 8847 m high.how many centimeters high is Mount Everest?
a_sh-v [17]

Answer: 884,700 cm

Explanation:

Since we already know how high Mount Everest is in meters, we convert it into centimetres.

I hope you found this answer helpful!!

7 0
3 years ago
How might scientific knowledge about monoculture farming affect societal decisions? Please be sure to answer in complete sentenc
alisha [4.7K]

Answer:

in monoculture farming , we produce a single species of a livestock or plant in large quantity.

Even though it is very effective, producing a mass number of a single organism in an Area will risk of endangering the existence of a specific nutrient ( because that large number of organism is basically eating the same thing)

which lead to societal decision such as the founding of The Livestock conservancy, or other environmental protection organization

Explanation:

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3 years ago
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