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3 years ago

What condition must be met when writing a formula for an ionic compound

Physics

1 answer:

babymother [125]3 years ago

5 0

Answer:

The charge of ions must be balance

Explanation:

Ionic compound: It is that compound which consist of positive and negative ions and ions held together by electrostatic force.Electric force is that force which act between two charges.

The compound is neutral because negative ions is equal to positive ions in the ionic compound.

The charge of ions must be balance.It is necessary condition for writing a formula for an ionic compound.

Hence,the charge of ions must be balance is that condition which must be met when writing a formula for an ionic compound.

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sergejj [24]

Mass=1kg
Acceleration due to gravity=9.8m/s^2

Using newtons second law

$\\ \sf\longmapsto Force=Mass\times Acceleration$

$\\ \sf\longmapsto Force=1(9.8)$

$\\ \sf\longmapsto Force=9.8N$

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3 years ago

What are derived quantities? <br><br> How do we get derived units?

Eddi Din [679]

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3 years ago

PLEASE HELP I HAVE FINALSSS

vitfil [10]

Answer: 26.67 m/s

Explanation:

Given

Length traveled by the ball $s=40\ m$

Time taken to reach the goal post is $t=3\ s$

Initial velocity $u=0\ m/s$

Using the second equation of motion

$\Rightarrow s=ut+\frac{1}{2}at^2\\\Rightarrow 40=0+\frac{1}{2}a(3)^2\\\Rightarrow a=\frac{80}{9}\ m/s^2\\$

Now using

$\Rightarrow v^2-u^2=2as\\\\\Rightarrow v^2-0=2\times \frac{80}{9}\times 40\\\\\Rightarrow v=\sqrt{\dfrac{80\times 80}{9}}=\dfrac{80}{3}\\\Rightarrow v=26.67\ m/s$

The velocity of ball will be 26.67 m/s

8 0

3 years ago

Explain how the extension of a spring is determined

fgiga [73]

Answer:

For a given spring the extension is directly proportional to the force applied For example if the force is doubled, the extension doubles When an elastic object is stretched beyond its limit of proportionality the object does not return to its original length when the force is removed

Explanation:

6 0

3 years ago

When you multiply (2.2500x10^3) x (3.00 x10^5) =675,000,000 report this answer to decimal using scientific notation

zavuch27 [327]

Answer:

$6.75\times 10^{8}$

Explanation:

(2.2500x10^3) x (3.00 x10^5)

First add the power values since all are to power 10 hence this will be 3+5=8

Then multiply the digit intergers ie 2.25*3=6.75

Therefore, in scientific notation this will be represented as $6.75\times 10^{8}$

8 0

4 years ago