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kenny6666 [7]
3 years ago
9

Humans have developed ways to increase the of their environment. true or false

Chemistry
1 answer:
Ganezh [65]3 years ago
3 0

Answer:

True......................had to do this because we need atleast 20 letters

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A particle with charge +1 nC (a nanocoulomb is 1 10-9 C) is located at the origin. What is the electric field due to this partic
Zolol [24]

Answer:

E=35.97\frac{V}{m}

Explanation:

The electric field of a point charge can be calculated using the next equation:

E=\frac{1}{4\pi \epsilon_0} \frac{Q}{r^2}

Where:

\epsilon_0=Absolute\hspace{3}permittivity\hspace{3}of\hspace{3}free\hspace{3}space\approx 8.85\times 10^{-12} \\Q=Charge\hspace{3}magnitude\\r=Distance

The distance can be calculated as:

r=\sqrt{0.5^2+0^2+0^2} =0.5

Using the data provided by the problem:

E=\frac{1}{4\pi (8.85\times 10^{-12}) } \frac{1\times 10^{-9} }{0.5^2} =35.96721878\approx35.97V/m

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4 years ago
Please type in the bonus code you received after getting 100% on Unit 2 practice test. Please helppp!!!
STatiana [176]

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5 0
3 years ago
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CSC Unit 3
Lilit [14]
Trigonal pyramidal has 1 lone pairs and 3 bonds so it is D. PH3
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Given: N2 + 3Cl2 → 2NCl3, ΔH = 464 kJ/mol Use the given bond energies and the periodic table to calculate the energy change in t
guapka [62]

The given chemical reaction is:

N_{2}+3Cl_{2}-->2NCl_{3}

ΔH^{0}_{reaction}=∑BE(reactants)-∑BE(products)

                 = {(941 kJ/mol) + (3 * 242 kJ/mol)} -[{2*(3*200 kJ/mol)}]

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Calculating the change in heat when 85.3 g chlorine reacts in the above reaction:

Moles of chlorine = 85.3 g Cl_{2}* \frac{1 mol Cl_{2}} {70.91 g Cl_{2}  }

                             = 1.20 mol Cl_{2}

Heat change when 1.20 mol chlorine reacts

                             = 1.20 mol * \frac{467kJ}{mol} =560.4 kJ

6 0
3 years ago
Hydrogen bonds form between adjacent water molecules because the
lesantik [10]

Hello,

I'd like to introduce you to the magnet analogy:

-Opposite sides attract

-Same sides repel

The first part applies to chemistry, so positive hydrogen bonds tend to attract to negative adjacent molecules.

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