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3 years ago

USE LETTERS FOR ANSWERS, NO NEED TO EXPLAIN

Chemistry

1 answer:

Deffense [45]3 years ago

6 0

Answer:

Ok:

Explanation:

6a) $Hg + Zn(NO_3)_2\\$

b) NR

c) $Hg_{(l)} + Zn(NO_3)_2 {(aq)}=> NR$

d) Welp, no reaction so i don't know.

7a) $KI + Pb(NO_3)_2$

b) $PbI_2 + KNO_3$

c) All are aqeuous except for PbI2 which is solid

d) $2KI _{(aq)}+ Pb(NO_3)_2_{(aq)} => PbI_2_{(s)} + 2KNO_3_{(aq)}$

Check if that is ok or if my work has any issues :).

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Is carbon monoxide an element a compound a heterogeneous mixture or a homogeneous mixture?

Scrat [10]

Answer: Carbon monoxide, or "CO", is a compound. This is a homogeneous compound (not a mixture).
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3 years ago

The reaction converting glycerol to glycerol-3-phosphate can be represented as: glycerol + hpo42− ⟶ glycerol-3-phosphate + h2o.

Volgvan

Answer;

Yes; this reaction be spontaneous if coupled with the hydrolysis of ATP.

Explanation;

The reaction converting glycerol to glycerol-3-phosphate (energetically unfavorable) can be coupled with the conversion of ATP to ADP (energetically favorable):

Glycerol + HPO42 ⟶glycerol-3-phosphate+H2O

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4 years ago

Read 2 more answers

During a spectrophotometric analysis of an unknown, you measure your solution's absorbance, and the value is higher than the hig

Reil [10]

Answer:

A) Dilute the unknown so that it will have an absorbance within the standard curve. Once the diluted unknown concentration is determined, the full strength concentration can be calculated if the dilution process is recorded. Beer's law only applies to dilute solutions, so diluting the unknown is better than making new standards.

Explanation:

Beer's law states that absorbance is proportional to the concentrations of the absorbing species. This is verified in the case of diluted solutions (0≤0.01 M) of most substances. As a solution gets more concentrated, solute molecules interact between themselves because of their proximity. When a molecule interacts with another, the change in their electric properties (including absorbance) is probable. That's why the plot of absorbance versus concentration stops being a straight line, and Beer's law is no longer valid.

Therefore, if the absorbance value is higher than the highest standard, dilutions should be made. Once this concentration is determined, the full strength concentration can be calculated with the inverse of the dilution.

7 0

3 years ago

Write the molecular formula of nitrate using criss cross method

exis [7]

Answer:

NO3 that is the answer to the question

8 0

3 years ago

135 grams of sodium has ______ moles. (Enter just the number for this one.)

just olya [345]

Answer : 135 grams of sodium has 5.869 moles.

Solution : Given,

Mass of sodium = 135 grams

Molar mass of sodium = 23 g/mole

Formula used :

$\text{Moles of sodium}=\frac{\text{Mass of sodium}}{\text{Molar mass of sodium}}$

Now put all the given values in this formula, we get

$\text{Moles of sodium}=\frac{135g}{23g/mole}=5.869moles$

Therefore, the moles of sodium present in 135 grams of sodium is, 5.869 moles.

6 0

3 years ago