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amm1812
3 years ago
15

Smoke filling up a room is diffusion or not

Chemistry
1 answer:
maxonik [38]3 years ago
7 0
Yes, because it comes from a one thing and spreads throughout the entire space. Similar to dripping foot coloring into a glass of water, or spraying air freshener.
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A student obtains a 10.0g sample of a white powder labeled as BaCl2. After completely dissolving the powder in 50.0mL of distill
Mamont248 [21]

Answer:

<em>(B.) What is the molar solubility of barium chloride, BaCl2 in water? </em>

Explanation:

Molar solubility is the number of moles of a substance that can dissolve in a liter of solution to the point of the solution's saturation. It can be calculated stoichiometrically from a substance's solubility product constant in mol/L.

Since all the BaCl_{2} reacted all the Na_{2} SO_{4} from the information, we can easily assume all the substances were consumed in the reaction, and hence account for their purity. Furthermore, BaSO_{4} is insoluble in water, the most probable scientific query would be the molar solubility of the BaCl_{2} used in the experiment.

3 0
4 years ago
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8.92 x 106 standard notation.
Anna71 [15]

Answer:

8,920,000

Explanation:

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3 years ago
Plsss help i’ll give brainlist
yarga [219]

Answer:

As the temperature of the water increases, the time needed for the dye to spread decreases. This is because the kinetic energy between the liquid particles increases, therefore helping the dye to dissolve and spread throughout the water.

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7 0
3 years ago
_________ is a jellylike substance within cells.
kifflom [539]

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Cytoplasm

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3 years ago
What is the percent by mass of magnesium sulfate in MgSO4 · 7H2O?
AfilCa [17]
ANSWER - 48.83%

Mg - 24.31
S - 32.07
O - 16x4 - 64
ADD ALL TOGETHER = 120.38

H - 1.01x2 - 2.02
O - 16
TOTAL = 18.02x7 = 126.14

ADD 120.38 to 126.14 = 246.52
last part divide MgSO4 by total compound mass 
120.38/246.52 then multiply by 100 = 48.831
7 0
3 years ago
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