3 years ago

What are 3 physical properties of aluminum foil

Chemistry

1 answer:

adell [148]3 years ago

4 0

Solid, ductile (can conduct heat), malleable (can be shaped differently).

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An aqueous potassium iodate (KIO3) solution is made by dissolving 553 grams of KIO3 in sufficient water so that the final volume

liberstina [14]

Answer:

M KIO3 = 1.254 mol/L

Explanation:

molarity (M) [=] mol/L

∴ w KIO3 = 553 g

∴ mm KIO3 = 214.001 g/mol

∴ volumen sln = 2.10 L

⇒ mol KIO3 = (553 g)×(mol/210.001 g) = 2.633 mol

⇒ M KIO3 = (2.633 mol KIO3 / (2.10 L sln)

⇒ M KIO3 = 1.254 mol/L

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4 years ago

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How much energy is required to melt 2 kg of copper? Use the table below and

Gennadij [26K]

Answer: 414 kJ

Explanation:

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3 years ago

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What is the final volume, in milliliters, when 5.80 mL of 25.0 %(m/v) NaOH solution is diluted to give a 3.50 %(m/v) NaOH soluti

Zigmanuir [339]

Answer:

41.43 mL

Explanation:

First we calculate the mass of NaOH in the original solution:

25.0 % m/v means that in 100 mL of solution, there are 25 grams of NaOH.

This means that in 5.80 mL, we would have (5.80 * 25/100) 1.45 grams of NaOH.

Then we calculate the volume of the diluted solution, using the grams of NaOH (that remain the same throughout the dilution process):

1.45 g NaOH * $\frac{100 mL}{3.50gNaOH}$ = 41.43 mL

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3 years ago

A silver necklace has a density of 10.5 g/mL and a volume of 1.5 mL. What is the mass of the silver necklace?

melamori03 [73]

Answer:

15.75g

Explanation:

Rearrange the formula: density = mass/volume, so that mass is the subject: mass = density × volume

Now substitute (plug in) the known values into the formula:

mass = 10.5 × 1.5 ⇒ mass = 15.75g

The mass of the silver necklace is 15.75g

Hope this helps!

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3 years ago

5. Arrange these samples in order of increasing mass: 2.5 mol Pb, 0.75 mol Au, 4.0 mol Mg, and 12 mol F.

KiRa [710]

Answer:

yws

Explanation:

yes

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3 years ago