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saul85 [17]
3 years ago
14

The ability of nitrogen to attract electrons is

Chemistry
1 answer:
Advocard [28]3 years ago
8 0

Answer:

Oxygen

Explanation:

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What happens to carbon in plants when the plants die.
Korvikt [17]

Answer:

Released into the atmosphere

Explanation:

The carbon that the plant had been storing when it was alive, would be released upon death into the soil

4 0
2 years ago
I need help I'll mark you as Brainliest ​
nikklg [1K]

Answer: c

Explanation:

6 0
3 years ago
Please help brainiest is award!!!!!!!!!!!
Alekssandra [29.7K]

Answer:

it doesnt even give you enough information for you to answer it

Explanation:

7 0
4 years ago
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A 200.0 mL solution of 0.40 M ammonium chloride was titrated with 0.80 M sodium hydroxide. What was the pH of the solution after
choli [55]

Answer:

9.25

Explanation:

Let first find the moles of NH_4Cl and NaOH

number of moles of NH_4Cl = 0.40  mol/L × 200 ×  10⁻³L

= 0.08 mole

number of moles of NaOH = 0.80  mol/L × 50 ×  10⁻³L

= 0.04 mole

The equation for the reaction is expressed as:

NH^+_{4(aq)} \ + OH^-_{(aq)} ------> NH_{3(g)} \ + H_2O_{(l)}

The ICE Table is shown below as follows:

                            NH^+_{4(aq)} \ + OH^-_{(aq)} ------> NH_{3(g)} \ + H_2O_{(l)}

Initial (M)              0.08            0.04                            0

Change (M)         - 0.04          -0.04                          + 0.04

Equilibrium (M)      0.04             0                                0.04

K_a*K_b = 10^{-14} \ at \ 25^0C

K_a = \frac{10^{-14}}{K_b}

K_a = \frac{10^{-14}}{1.76*10^{-5}}

K_a= 5.68*10^{10}

pK_a = - log \ (K_a)

pK_a = - log \ (5.68*10^{-10})

pK_a = 9.25

pH = pKa + \ log (\frac{HB}{HA} )   for buffer solutions

pH = pKa + \ log (\frac{moles \ of \ base }{ moles\ of \ acid} ) since they are in the same solution

pH = 9.25 + \ log (\frac{0.04 }{ 0.04} )

pH = 9.25

8 0
3 years ago
Melting water is an example of a physical change because the atoms are pulled apart to form a new substance. bonds are broken an
kompoz [17]
The appropriate answer is 'the identity of the substance does not change'. Melting water is a phase change from solid to liquid. the melting occurs because the solid ice has absorbed energy or heat energy which breaks down the crystal structure of the ice so that the particles of water are free to flow around. the chemical formula of the substance does not change.  <span />
3 0
4 years ago
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