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4 years ago

What occurs when an atom of chlorine forms a chloride ion?

1 answer:

7 0

The answer is B. The chlorine has 7 electrons at the outer shell. So it will gain one electron to become stable when forms a chloride ion. And the gained electron will stay at the outer shell. So the radius becomes larger.

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Calculate the pressure exerted on the floor when an elephant who weighs 2400 N

Inessa05 [86]

Answer:

The answer is

Explanation:

The pressure exerted by an object given the force of the object and the area can be found by using the formula

$P = \frac{f}{a} \\$

where

P is the pressure

f is the force

a is the area

From the question

f = 2400 N

a = 0.4 m²

So we have

$P = \frac{2400}{0.4} \\$

We have the final answer as

Hope this helps you

8 0

3 years ago

Potassium superoxide is a yellow paramagnetic solid that reacts with water according to the following balanced equation. Calcula

babunello [35]

<u>Answer:</u> The mass of potassium superoxide required is 142.2 grams

<u>Explanation:</u>

The chemical equation for the reaction of potassium superoxide with water follows:

$2KO_2+H_2O\rightarrow KOH+KHO_2+O_2;\Delta H=2405J$

Number of moles of potassium superoxide reacted = 2 moles for given amount of heat released

To calculate the mass for given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Molar mass of potassium superoxide = 71.1 g/mol

Moles of potassium superoxide = 2 moles

Putting values in above equation, we get:

$2mol=\frac{\text{Mass of potassium superoxide}}{71.1g/mol}\\\\\text{Mass of potassium superoxide}=(2mol\times 71.1g/mol)=142.2g$

Hence, the mass of potassium superoxide required is 142.2 grams

4 0

3 years ago

An organism breathe with lungs lays eggs and has feathers the organism is?

NARA [144]

An organism that breathes with its lungs, lays eggs and has feathers is a bird!

4 0

4 years ago

The bowl of fruit has a mass of 2.2 kg.

AURORKA [14]

Taking into account the Newton's second law, the correct answer is option A. F = 9.68 N right

In first place, acceleration in a body occurs when a force acts on a body.

Newton's second law states that a force will change the speed of an object because the speed and/or direction will change. These changes in velocity are called acceleration.

So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object

Mathematically, Newton's second law is expressed as:

F= m×a

where:

F = Force [N]
m = Mass [kg]
a = Acceleration [m/s²]

In this case, you know:

F= ?
m= 2.2 kg
a= 4.4 m/s²

Replacing in Newton's second law:

F= 2.2 kg× 4.4 m/s²

Solving:

Finally, As the bowl of fruit accelerates to the right, the correct answer is option A. F = 9.68 N right

Learn more about the Newton's second law:

brainly.com/question/23845187?referrer=searchResults

brainly.com/question/13959891?referrer=searchResults

6 0

2 years ago

navik [9.2K]

Answer:

nutrients is the correct answer

Explanation:

if it is correct so please mark it as brainliest

6 0

3 years ago

Read 2 more answers