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zimovet [89]
2 years ago
5

My science exam is due tomorrow and I HAVE LIMITED TIME. can someone help me how to absorb anything you read and memorize it...

Chemistry
1 answer:
igor_vitrenko [27]2 years ago
7 0

Answer:  

It won't let me type this for some reason but here it is.

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If a car jack's output force is 1000 N and the mechanical advantage is 6.8, what is the input force?
Travka [436]
Answer
147.06N
Explanation:
MA=Load/Effort
6.8=1000/x
Finding x you make x the subject and divide 1000 by 6.8 which is 147.06N
4 0
2 years ago
Uranium emits particles and rays spontaneously through this process
aev [14]
Uranium emits particles and rays spontaneously through this process called radioactive decay or radioactivity.

Is the process by which the nucleus of an unstable atom loses energy by emitting radiation, including alpha particles, beta particles. gamma rays and conversion electrons.
3 0
4 years ago
Large crystals are formed when _____. igneous rocks cool very quickly metamorphic rocks change into igneous rock sedimentary roc
vivado [14]

igneous rocks cool very slowly

Explanation:

Large crystals are formed when rocks cool very slowly. This gives time for crystallization nuclei to form and other crystals aggregates round it.

  • Large crystals in rocks are typical of intrusive igneous rocks.
  • These rocks are formed beneath the earth surface and they usually have big crystals.
  • This because they cool slowly and have time for crystal formation.
  • Rocks that cools rapidly are extrusive igneous rocks.
  • They are usually fine grained and glassy in nature.

learn more:

Volcanic eruptions brainly.com/question/5055821

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3 0
3 years ago
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What will be the new volume of a 250 mL sample of gas at 300 K and 1 atm if heated to 350 K at 1 atm? Law used:
ladessa [460]
Using Charles's law; which states that the volume of an ideal gas is directly proportional to the absolute temperature at constant pressure. 
That is; V α T
Hence; V1/T1 = V2/T2 = constant
V2 =  V1 × (T2/T1)
    = 250 × (350/300) = 291.67 mL
Therefore; the new volume will be 291.67 mL
3 0
3 years ago
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What is the smallest identifiable unit of a compound
iogann1982 [59]

Answer:A(n) molecule that is made up of atoms that are chemically bonded is the smallest recognizable unit of a compound.

Explanation:

4 0
3 years ago
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