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d1i1m1o1n [39]
3 years ago
13

Calculate how many valence electrons are in H2CO, N2, Cl2?

Chemistry
2 answers:
netineya [11]3 years ago
8 0
In H2CO, C is bonded to H, H and O.  Write down the valence electrons of each element.2 H = 1x 2 = 2.C= 4O = 6Total: 12
Ket [755]3 years ago
6 0
<span>In H2CO, C is bonded to H, H and O. Write down the valence electrons of each element. 2 H = 1x 2 = 2. C= 4 O = 6 Total 12 </span>
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The answer is A, light and heat energy.

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7. A small roll of double-sided tape is 6.35m long and 1.2 x 102m wide. What is the total area that could be
allsm [11]

The total area that could be covered by this roll of tape is 0.1524 m².

<h3>What is the double-sided tape?</h3>

A double-sided tape is a tape that can be stick from both sides. It is used to stick something on a surface. A rectangle is an object that has four sides in which two sides are equal.

If we unroll the tape, we will see that it is a rectangle with dimensions:

length = 6.35 m

width = 1.2 x 10⁻² m

Since the tape has two sides, the total area of the tape is:

A = 2 x (length x width)

A = 2 x 6.35 x 1.2 x 10⁻²

A = 0.1524 m²

Thus, the total area of the tape is 0.1524 m²

To learn more about the area of rectangle, refer to the link:

brainly.com/question/8663941

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2 years ago
I need some help with crush advise. So basically i have a crush on this dude but i don't think he know me we are not in the same
Maru [420]

Answer:

Go for it!

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If a 12-volt battery produces a current of 20 amps, what is the resistance?
mixas84 [53]

Answer:

0.6 Ω

Explanation:

From the question given above, the following data were obtained:

Voltage (V) = 12 V

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V = IR

Where:

V => is the voltage

I => is the current

R => R is the resistance

With the above formula, we can obtain the resistance as follow:

Voltage (V) = 12 V

Current (I) = 20 A

Resistance (R) =?

V = IR

12 = 20 × R

Divide both side by 20

R = 12 / 20

R = 0.6 Ω

Thus the resistance is 0.6 Ω

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3 years ago
Considering the following precipitation reaction: Pb(NO3)2(aq) + 2Kl(aq) – Pbl (s) + 2KNO3(aq) IN What is the correct complete i
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Answer:

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yellow precipitate

Explanation:

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