PHYSICS MIDDLE SCHOOL

What happens when an atom gives up loosely held valence electrons to another atom​

Answers

Answer 1
Answer:

Answer:

The number of valence electrons increases to 8 or, the atom gives up loosely held valence electrons.

Explanation:

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Cecil is working with samples of chlorine (Cl), oxygen (O), bromine (Br), and silver (Ag). The samples are all at room temperature. Which substance is most likely the most dense?chlorine
oxygen
bromine
silver

Answers

Answer: Option (d) is the correct answer.

Explanation:

As it is known that density is the amount of mass divided by the volume.

Mathematically,     Density = (mass)/(volume)

Since, mass is directly proportional to density. Hence, more is the mass of an object more will be its density.

At room temperature chlorine exists as a gas and its molar mass is 35 g/mol.

At room temperature oxygen exists as a gas and its molar mass is 32 g/mol.

At room temperature bromine exists as a liquid and its molar mass is 80 g/mol.

At room temperature silver exists as a solid and its molar mass is 108 g/mol.

As the mass of silver is greater and it exists as a solid at room temperature. Hence, it will be most dense in nature.

Therefore, we can conclude that out of the given options silver substance is most likely the most dense.
The answer is silver. Silver is the most dense, it's a solid so it is more compact and is obviously the most likely to have more mass to it.

1) There are many positive and negative aspects associated with nuclear power. Which is a negative aspect associated with nuclear power?

Answers

Nuclear power emits radiation.

a truck is moving around a circular curve @ a uniform velocity of 13m/s. if the centifrical force on truck is 3,300N with truck mass of 1600kg. What is curve radius?

Answers

Answer

81.94 m


Explanation

The centripetal force of an object moving in a circular path is given by:

F = mv²/r  Where m is the mass of the object, v is the constant velocity and r is the radius of the curve.

F = mv²/r

3,300 = (1600×13²)/r

3,300 = 270,400/r

r = 270,400/3,300

  = 81.94 m

How do prokaryotes differ from eukaryotic and how are they similar?

Answers

Prokaryotes = no nucleus; are usually more for simpler organisms
Eukaryotes = CARRY a nucleus

Fireworks change _____ into _____ and _____ energy.

Answers

They first change into chemical, then to radiant, then finally to thermal energy.
oooh! I love fireworks! but heres the answer:
chemical, then thermal, then to radiant.
I hope thats right. :)

Three students are pushing on a box. Under what conditions will the motion of the box change?

Answers

Answer:

The condition is that the force applied by the students must be higher than friction.

Explanation:

There are several deductions we could make. If the force applied by the students is less than friction, then the box won't change its state of motion, it will remain under equilibrium, because friction is a force that it's always opposite to any force applied, if the students are pushing forward, the friction will push back.

But, if the force applied by the students is higher than friction, the box will change its state of motion, it won't remain in equilibrium states and it will start to move.

Therefore, the condition is that the force applied by the students must be higher than friction.
The motion of the box can change if the force applied is greater than friction. Like it's accelerating due to the students' force on the box.
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