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Nataly [62]
3 years ago
10

Which best identifies the function of fruits?

Chemistry
2 answers:
Naddik [55]3 years ago
6 0
I think it’s A but I’m not sure. Sorry if I’m wrong
Arte-miy333 [17]3 years ago
3 0

Explanation:

i am not sure but i think is C

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Need help asap please and thank you!!
ziro4ka [17]

Answer:

Brother/sister It's Layer 'C'

Explanation:

HOPE IT HELPZZ!

8 0
2 years ago
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
Plant cell synthesize energy rich organic molecules and later energy is released through the processes of
zmey [24]
Pretty sure its photosynthesis ?

7 0
3 years ago
High temperature refrigeration is that produced by ____. A. heat from a furnace B. an air-conditioning system C. the vegetable c
seropon [69]

Answer:

B. an air-conditioning system.

Explanation:

Refrigeration is defined as a process of cooling a system to lower temperature below the surrounding temperature while the removed heat is rejected at higher temperatures.

Heat pumps use the heat output of the refrigeration process, which may also be designed to be reversible, but are otherwise similar to air conditioning units.

4 0
3 years ago
THIS IS FOR MY FINAL EXAM IN CHEM!!!!!! PLEASE PLEASE PLEASE DON'T GUESS
Artemon [7]
A. soluble.
The are solubility rules that predict precipitation reaction.
7 0
3 years ago
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