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Papessa [141]
3 years ago
9

If a reaction occurs, what will be the products of the unbalanced reaction below?

Chemistry
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

B. Cu (s) +Ni(NO3)2 (aq) - 2CuNO3 +Ni (s)

Explanation:

the above reaction is a substitution reaction

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An astronaut leaves the International Space Station (ISS) on a tethered line. Although ISS and Earth exert gravitational force o
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Answer: D)The distance from Earth and mass of ISS exert negligible gravitational force on the astronaut.

Explanation:

The distance from Earth and mass of ISS exert negligible gravitational force on the astronaut. Gravity is a very weak force and varies with mass and the inverse square of distance. The astronaut's distance from Earth and the relative small mass of ISS result in gravitational force near zero.

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Anyone else ever done this? Please help !!
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Answers for criss-cross (except Q3) is in the above picture.

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Why is water a polar molecule but a fluorine molecule is not?
yKpoI14uk [10]

Answer:

The electrons in H2O are not shared equally, making it a polar molecule. The molecules in flourine, F2, are shared equally, making it not a polar molecule.

Explanation:

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3 years ago
When scientists create a representation of a complex process, they are
Burka [1]

Answer:

d making models.

Explanation:

When scientists create a representation of a complex process, they are inferring that they are making models.

A model is an abstraction of the real world or a complex process. Models are very useful in developing solutions to processes that are not easily simplified.

  • The models allow a part of a body to be simply studied.
  • Through this simple abstraction, extrapolations to other parts of the system can be deduced.
  • This can give very useful insights into the other parts of the system.
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5 0
3 years ago
A hydraulic system is designed to lift cars for inspection in a service station. The narrow end of the system has a surface area
fiasKO [112]

<u>Given:</u>

Surface area at the narrow end, A1 = 5.00 cm2

Force applied at the narrow end, F1 = 81.0 N

Surface area at the wide end, A2 = 725 cm2

<u>To determine:</u>

Force F2 applied at the wide end

<u>Explanation:</u>

Use the relation

F1/A1 = F2/A2

F2 = F1*A2/A1 = 81.0 N * 725 cm2/5.00 cm2 = 11,745 N

Ans: (b)

The force applied at the wide end = 11,745 N

5 0
3 years ago
Read 2 more answers
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