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kotegsom [21]
3 years ago
13

Whats is nail polish remover

Chemistry
1 answer:
melisa1 [442]3 years ago
6 0

nail polish remover is acetone

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A 0.89% (w/v) sodium chloride solution is referred to as physiological saline solution because it has the same concentration of
maks197457 [2]
1) 0.89% m/v = 0.89 grams of NaCl / 100 ml of solution

=> 8.9 grams of NaCl in 1000 ml of solution = 8.9 grams of NaCl in 1 liter of solution

2) Molarity = M = number of moles of solute / liters of solution

=> calculate the number of moles of 8.9 grams of NaCl

3) molar mass of NaCl = 23.0 g /mol + 35.5 g/mol = 58.5 g / mol

4) number of moles of NaCl = mass / molar mass = 8.9 g / 58.5 g / mol = 0.152 mol

5) M = 0.152 mol NaCl / 1 liter solution = 0.152 M

Answer: 0.152 M
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Where do producers get matter and energy to live and grow ?
bixtya [17]

Answer:c

Explanation:

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What evidence would support Maria's claim that the fossilized remains are that of a bird, class Aves, instead of a turtle, class
lora16 [44]

Your answer would be C.

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2.107 × 10^24 calculate the number of moles​
bulgar [2K]
2.1070000000000003e+24
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when aqueous solutions of sodium hydroxide and iron (II) chloride react, which substance will precipitate? 2NaOH + FeCl2 = 2NaCl
nataly862011 [7]

Answer:

Fe(OH)2

Explanation:

Iron hydroxides are chemical compounds that appear as precipitates after alkalizing solutions containing iron salts, both in their valence or degree of oxidation (III) and (II).

Hydroxide, in both cases, is a gelatinous colloid of difficult filtration that can be considered a hydrated oxide, iron (II) hydroxide is whitish in color and requires more alkalinization, above 7.

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