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4 years ago

PPLEASE HELP I WILL GIVE BRAINLIEST AND LOT OF POINTS

Chemistry

2 answers:

zzz [600]4 years ago

7 0

Answer:1.hcl 2.lemon juice 3.blood 4. bleach 5.saliva 6.naOH

marysya [2.9K]4 years ago

6 0

Answer:

Hi, even though this is really not a question or an answer to a question.

Explanation:

Do you know if any of this stuff involves 6th grade?

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The fridge part can, just not the freezer, I think.

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4 years ago

What is a property of a combustion reaction?

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3 years ago

6 Fe2+ (aq) + Cr2O72− (aq) + 14 H+ (aq) → 6 Fe3+ (aq) + 2 Cr3+ (aq) + 7 H2O (aq) If the titration of 23 mL of an iron(II) soluti

ratelena [41]

Answer:

1.047 M

Explanation:

The given reaction:

$6Fe^{2+}_{(aq)}+Cr_2O_7^{2-}_{(aq)}+14H^+_{(aq)}\rightarrow 6Fe^{3+}_{(aq)}+2Cr^{3+}_{(aq)}+7H_2O_{(aq)}$

For dichromate :

Molarity = 0.254 M

Volume = 15.8 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 15.8 ×10⁻³ L

Thus, moles of dichromate :

$Moles=0.254 \times {15.8\times 10^{-3}}\ moles$

Moles of dichromate = 0.0040132 moles

1 mole of dichromate react with 6 moles of iron(II) solution

Thus,

0.0040132 moles of dichromate react with 6 × 0.0040132 moles of iron(II) solution

Moles of iron(II) solution = 0.02408 moles

Volume = 23 mL = 0.023 L

Considering:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

<u>Molarity = 0.02408 / 0.023 = 1.047 M</u>

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3 years ago

Which one doesnt belong in the list below?

Firdavs [7]

One liter doesn't belong

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3 years ago

Number of SO2 molecules in 1.28 mol of SO2

dolphi86 [110]

Answer:

7.7056 x 10^23

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3 years ago