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3 years ago

What is the temperature when ice Melt

Chemistry

1 answer:

kenny6666 [7]3 years ago

6 0

The temperature when ice melts is 32 degrees Fahrenheit.

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Given the incomplete equation representing a reaction:

Akimi4 [234]

O is what should go in the blank. O stands for Oxygen.

3 0

3 years ago

Use electron configurations to account for the stability of the lanthanide ions Ce⁴⁺ and Eu²⁺.

Citrus2011 [14]

Answer:

Explanation:

The Ce metal has electronic configuration as follows

[Xe] 4f¹5d¹6s²

After losing 4 electrons , it gains noble gas configuration ,. So Ce ⁺⁴ is stable.

Eu has electronic configuration as follows

[ Xe ] 4 f ⁷6s²

[ Xe ] 4 f ⁷

Its outermost orbit contains 2 electrons so Eu²⁺ is stable. Its +3 oxidation state is also stable.

Ce⁺²

7 0

3 years ago

This diagram shows the forces acting on a car. The center dot represents the car, and the arrows represent the forces acting on

Mariulka [41]

Answer : The correct option is B- Towards the left.

Solution : Given,

Force on car in upward direction, $F_1$ = 6000 N

Force on car in downward direction, $F_2$ = 6000 N

Force on car in right direction, $F_3$ = 5000 N

Force on car in left direction, $F_4$ = 6000 N

Force : Force is equal to the mass multiplied by the acceleration. The force is directly proportional to the acceleration.

Formula : F = m × a

where, F is force, m is mass and a is acceleration.

From the given diagram we conclude that the $F_1$ and $F_2$ are in opposite direction and the force acting on car are same. So, their net force is zero.

And in case of $F_3$ and $F_4$ , the net force will not be zero because force acting on car are different. The car will accelerate towards left direction because $F_4$ is higher than the $F_3$ .

So, the car will accelerate towards left direction.

3 0

2 years ago

Someone pls help me I will make you brain

Katena32 [7]

Answer:

it is actually b because i did this i picked b and got it right

Explanation:

4 0

3 years ago

For metals like aluminum and iron, which are found naturally in nature as oxides, the refining process requires that the metals

Romashka-Z-Leto [24]

Answer:

reduced

Explanation:

To win the metallic product from the oxide, it demands that the metal be reduced.

During reduction a metal will:

gain electrons.
there would be removal of oxygen from the specie
there would be decrease in oxidation number of the atom
decrease in the number of electronegative atom surrounding the element.

The specie that is reduced will become the oxidant and reducing agent in the chemical reaction.

3 0

3 years ago