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mojhsa [17]
3 years ago
14

Balance the following equation: _____ Fe + _____Br2 -----> _____ FeBr3

Physics
1 answer:
Nataly_w [17]3 years ago
7 0

Answer:

2 Fe + 3 Br₂ → 2 FeBr₃

Explanation:

There are 2 Br atoms on the left, and 3 on the right.  So put a 3 in front of Br₂, and a 2 in front of FeBr₃.

_Fe + 3 Br₂ → 2 FeBr₃

Now there's 6 Br atoms on each side.  There are 2 Fe atoms on the right side, so put a 2 in front of Fe:

2 Fe + 3 Br₂ → 2 FeBr₃

Now the equation is balanced.

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10. Electrical Power: Why do our electronic devices get hot? We know
Vesna [10]

Answer:

Now, think on the electrons flowing through a conductor (we can think on the resistor as a simple conductor, like a piece of metal)

Inside the conductor, we have some "fixed" (they do not flow with the current) electrons, such that as the current flows in the conductor, the flowing electrons can interact with the fixed ones in the conductor. Then we can have collisions inside the conductor.

In those collisions, the flowing electrons leave energy in the conductor, and as we know, heat is a form of energy. Then when we have a lot of these collisions, the temperature of the conductor increases.

That is why electronic devices get hot.

Also, as the temperature of a conductor increases, the electrons inside of it start to move more, then the probability of an interaction with the flowing electrons increases.

3 0
2 years ago
An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation
katrin [286]
Radiative power scales with the fourth power of temperature, so 160 W.
3 0
3 years ago
Four uniform objects having the same mass and diameter are released simultaneously from rest at the same distance above the bott
Jet001 [13]
The one with the majority of its mass furthest away from its center will reach the bottom last. The thin walled cylinder has all of its mass at the edge of itself, meaning its mass is the furthest from its center. If we take a look at the solid cylinder, it has some mass at its edge, but it also has a lot of mass very close to its center so it will roll faster than the thin walled cylinder. And the thin walled cylinder will be slower than the normal hollow cylinder because even though the hole cylinder doesn't have any mass at its center it does have some mass closer to its center than the thin walled cylinder.

So the last one to reach the bottom is the thin walled cylinder.
8 0
3 years ago
What is NOT a reason that Cape Canaveral was chosen to be one of six locations for
prohojiy [21]

It being near railroads is not a reason why Cape Canaveral was chosen to

be one of six locations for a NASA space center.

<h3>What is the Cape Canaveral?</h3>

The Cape Canaveral is a site which was chosen as a NASA space center for

the launching of rockets into space. It was chosen as a result of the factors

such as:

  • It being scarcely-populated.
  • It has a  temperate climate.
  • It is situated by the ocean.

The temperate climate is located closer to the equator and has a high

centrifugal force which would aid launching of rockets. It was also chosen

because it was scarcely populated and situated by the ocean to prevent

lesser effect on land in the case of accidents and other factors.

Read more about Cape Canaveral here brainly.com/question/614447

4 0
2 years ago
If the spheres are now brought close to each other, but do not touch, describe how the charges will be distributed on their surf
Oxana [17]

Answer: it would be distributed uniformly.

Explanation:

charge carriers in conductors are free to move around and that charge on a conductor spreads itself out on the surface of the conductor.

When the two conducting spheres are brought together to touch, it is as though they become one single big conductor and the total charge of the two spheres spreads out across the whole surface of the touching spheres. When the spheres are moved apart again, each one is left with half of the total original charge.

3 0
2 years ago
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