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Oksana_A [137]
3 years ago
15

imagine you are a engineer designing a new cell phone. describe the criteria you would use, along with possible constraints and

trade offs in the design process.
Chemistry
2 answers:
adoni [48]3 years ago
7 0
Battery motherboard metal lied screen glass screen camera Face ID internal hardware the processor chip (etc)…
fomenos3 years ago
3 0

battery,phone cover,model of phone,plastic cover phone by rain oil or some harmful effects , need wire stricker to make phone good so the people buy it and some inner parts

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How many total electrons are in the Pb^4+ ion?<br> A. 82 <br> B.86 <br> C.78
pickupchik [31]

Answer:

82

4 0
3 years ago
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Balance the redox reaction in alkaline medium &amp; identify the oxidizing &amp; reducing agents
Darya [45]

The balanced redox equation of the reaction is given below:

  • I⁻ + 2 MnO₄ + H₂O → IO₃⁻ + 2 MnO₂ + 2 OH⁻

The oxidizing agent is MnO₄ while the reducing agent is I⁻.

<h3>What are redox equations?</h3>

Redox equations are equations in which oxidation and reduction reactions occur together.

Redox reactions can take place in alkaline or acidic mediums.

The balanced redox equation of the reaction is given below:

  • I⁻ + 2 MnO₄ + H₂O → IO₃⁻ + 2 MnO₂ + 2 OH⁻

The oxidizing agent is MnO₄ while the reducing agent is I⁻

In conclusion, a balanced redox equation is one in which the atoms and the change in oxidation state is equal on both sides of the reaction.

Learn more about redox equations at: brainly.com/question/27239694

#SPJ1

8 0
2 years ago
Who is Ethiopian <br> ......?!?!?!
Igoryamba

Answer:

Me

Explanation:

I got 4 Ethiopian brainly friends..im happy if u free plz talk me to find some one

5 0
3 years ago
A sample of a vapor occupies a volume of 500 mL at 65°C. If pressure remains constant, what is the volume of the gas at standard
DedPeter [7]

Answer:

403 mL

Explanation:

First, I will assume that the mole is 1, because you are not specifing this.

Now, with the innitial data, we need to get the pressure:

T = 65+273 = 338 K

V = 500 / 1000 = 0.5 L

Now if:

PV = nRT

Then:

P = nRT/V   and V = nRT/P

Let's calculate the P:

P = 1 * 0.082 * 338 / 0.5 = 55.432 atm

The standard temperature is 0° C or 273 K so, the volume is:

V = 1 * 0.082 * 273 / 55.432

V = 0.40384 L or simply 403.84 mL

8 0
3 years ago
Could someone help me please?
sergey [27]

Answer:

2,4,2

Explanation:

by looking at the subscripts (small number behind the element) you can tell how many of these atoms are presented in the compound.

your compound is C2H4O2

so there are two carbon atoms present, four hydrogen atoms present, and 2 oxygen atoms present.

hope this helps :)

8 0
3 years ago
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