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3 years ago

What is the length of one mole of the typical cell phone that is approximately 15 cm in length?

Chemistry

2 answers:

Solnce55 [7]3 years ago

7 0

Answer:

Some objects of more than 15 cm and less than 30 cm can be:

A rule.

A cell phone.

A pencil.

A calculator.

A laptop charger.

We have to measure it helps us to compare and to obtain physical magnitudes of different objects.

Measurement is the action of obtaining a representative magnitude of a particular object, now, to measure we need to compare and have reference points.

See more at brainly.lat/tarea/3935004.

Explanation:'

I hope my answer is to your liking; 3 gi v me a crown, please

Salsk061 [2.6K]3 years ago

4 0

i dont know how to remove my answer so ignore this

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If 45.0 mL of a 0.0500 M HNO3, 10.0 mL of a 0.0500 M KSCN, and 30.0 mL of a 0.0500 M Fe(NO3)3 are combined, what is the initial

jeka94

Answer:

the initial concentration of SCN- in the mixture is 0.00588 M

Explanation:

The computation of the initial concentration of the SCN^- in the mixture is as follows:

As we know that

$KSCN \rightarrow K^ + SCN^-$

As it is mentioned in the question that KSCN is present 10 mL of 0.05 M

So, the total milimoles of SCN^- is

= 10 × 0.05

= 0.5 m moles

The total volume in mixture is

= 45 + 10 + 30

= 85 mL

Now the initial concentration of the SCN^- is

= 0.5 ÷ 85

= 0.00588 M

hence, the initial concentration of SCN- in the mixture is 0.00588 M

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3 years ago

The atomic bomb detonated in 1945 produced an explosion equivalent to 18,600 tons of TNT from 5 kg of _____.

kvasek [131]

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3 years ago

A magnet sticks to an iron can and an iron rod. This is an intrinsic property. <br> True or false?

lesantik [10]

Answer:

True

Explanation:

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3 years ago

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scZoUnD [109]

Answer:

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2 years ago

What is the ph of a 0.006 m koh solution? 1. 11.78 2. 7.00 3. 2.22 4. 8.88 5. 5.12?

Stels [109]

The concentration of OH⁻ is first converted to pOH bu using followinf formula,

pOH = -log [OH⁻]
Putting value,
pOH = -log (0.006)

pOH = 2.221
As we know,
pH + pOH = 14
Solving for pH,
pH = 14 - pOH
Putting value of pOH,
pH = 14 - 2.221

pH = 11.779
Result:
Option-1 is the correct answer.

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3 years ago