Sugar dissolved completely in water to form a solution. The solution is a ?<br><br> pleasee help

Write a balanced half-reaction describing the reduction of aqueous iron(III) cations to aqueous iron(II) cations.

melamori03 [73]

Answer:

The answer to your question is:

Explanation:

Iron (III) ⇒ Iron (II)

Fe⁺³ + 1e⁻ ⇒ Fe⁺²

6 0

4 years ago

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PLZ help me with this question

Karo-lina-s [1.5K]

Mean: 237.5
Median: 250
Mode: 300

4 0

3 years ago

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Two identical bottles at the same temperature contain the same gas. If bottle B has twice the volume and contains half the numbe

yuradex [85]

Answer:

The ratio of pressure in bottle B to that of bottle A is 1 : 4

Explanation:

We'll be by calculating the pressure in both bottles. This is illustrated below below:

For A:

Temperature (T) = T

Volume (V) = V

Number of mole (n) = n

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =...?

PV = nRT

PV = n x 0.0821 x T

Divide both side by V

P = nT0.0821/V

Therefore, the pressure, in bottle A is

PA = nT0.0821/V

For B:

Temperature (T) = the same as that of A = T

Volume (V) = twice that of A = 2V

Number of mole (n) = half that of A = ½n

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =...?

PV = nRT

P x 2V = ½n x 0.0821 x T

Divide both side by 2V

P = ½n x 0.0821 x T/2V

P = nT0.0821/4V

Therefore, the pressure in bottle B is:

PB = nT0.0821/4V

Now, we can obtain the ratio of pressure in bottle B to that of bottle A as follow:

Pressure in bottle A (PA) = nT0.0821/V

Pressure in bottle B (PB) = nT0.0821/4V

PB/PA = nT0.0821/4V ÷ nT0.0821/V

PB/PA = nT0.0821/4V x V/nT0.0821

PB/PA = 1/4

Therefore, the ratio of pressure in bottle B to that of bottle A is 1 : 4.

3 0

4 years ago

Need help with this please help ASAP

gregori [183]

Answer:

The correct answer would be -

17. 50% chances of round offspring

18. 25% chances two copies of dominant allele in the genotype of offspring

Explanation:

17. In this question it is stated that the Spongebob is heterozygous and has a square body which means the square body is dominant over the round that is present in sponge Susie that means she has two copies of the recessive allele.

S for square trait and s for a round trait then

S s

s Ss ss

Thus, the correct answer is 50 percent as there are only two copies of ss.

18. in this question Patric and Patti both have heterozygous for the pink (P) body-color dominant over yellow (p). The chances for the true-breeding dominant genotype would be -

P p

P PP Pp

p Pp pp

There is only one out of four rue-breeding dominant offspring will be produced.

3 0

3 years ago

13. Copper(II) chloride and silver acetate Acid/Base:

Lubov Fominskaja [6]

Answer:

13. $CuCl_2 \hspace{0.1cm}+ CH_3COOAg -> AgCl \hspace{0.1cm} + (CH_3COO)_2Cu$

This is a double displacement reaction, not an acid-base reaction

14. $HF\hspace{0.1cm}+Ba(OH)_2 ->\hspace{0.1cm}H_2O\hspace{0.1cm}+BaF_2$

$Ba(OH)_2 -> Base$

$HF -> Acid$

15. $HCl\hspace{0.1cm}+Mg(OH)_2->\hspace{0.1cm}H_2O\hspace{0.1cm}+MgCl_2$

$MgCl_2 -> Base$

$HCl -> Acid$

16. $CH_3COOH\hspace{0.1cm}+LiOH->\hspace{0.1cm}H_2O\hspace{0.1cm}+CH_3COOLi$

$LiOH -> Base$

$CH_3COOH -> Acid$

17. $H_2SO_4\hspace{0.1cm}+NaOH->\hspace{0.1cm}H_2O\hspace{0.1cm}+NaHSO_4$

$NaOH -> Base$

$H_2SO_4-> Acid$

18. $H_2SO_4\hspace{0.1cm}+NaOH->\hspace{0.1cm}H_2O\hspace{0.1cm}+NaHSO_4$

$NaOH -> Base$

$H_2SO_4-> Acid$

19. $H_2SO_4\hspace{0.1cm}+NaHCO3->\hspace{0.1cm}H_2O\hspace{0.1cm}+CO_2+\hspace{0.1cm}Na_2SO_4$

$NaHCO_3-> Base$

$H_2SO_4-> Acid$

20. $H_3PO_4\hspace{0.1cm}+Zn(OH)_4->\hspace{0.1cm}H_2O\hspace{0.1cm}+Zn_3(PO_4)_4$

$Zn(OH)_4> Base$

$H_3PO_4-> Acid$

21. $HF\hspace{0.1cm}+Na_2SO_3->\hspace{0.1cm}H_2O\hspace{0.1cm}+NaF\hspace{0.1cm}+\hspace{0.1cm}SO_2$

$NaSO_2> Base$

$HF-> Acid$

22. $HCl\hspace{0.1cm}+Na_2SO_3->\hspace{0.1cm}H_2O\hspace{0.1cm}+NaCl\hspace{0.1cm}+\hspace{0.1cm}SO_2$

$NaSO_2> Base$

$HCl-> Acid$

23. $HCl\hspace{0.1cm}+Na_2S->\hspace{0.1cm}H_2S\hspace{0.1cm}+NaCl$

$Na_2S> Base$

$HCl-> Acid$

24. $NH_4Cl\hspace{0.1cm}+NaOH->\hspace{0.1cm}H_2O\hspace{0.1cm}+NaCl+{0.1cm}NH_3$

$NaOH> Base$

$NH_4Cl-> Acid$

Explanation:

All acid-base reaction have the same products, $H_2O$ and a salt. Whit this in mind the acids would the compounds that produces the hydronium ion $(H^+)$ and the bases would be the compounds that produces the hydroxide ion $(OH^-)$

8 0

3 years ago

Sugar dissolved completely in water to form a solution. The solution is a ? pleasee help