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IrinaK [193]
3 years ago
6

4. milk turning sour

Chemistry
2 answers:
sp2606 [1]3 years ago
7 0
I think it’s a physical
aalyn [17]3 years ago
5 0

Answer:

Chemical change

Explanation:

Hi again. The lactose in the milk is converted to lactic acid by microbes. It has turned into a new substance that is irreversable.

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How many grams of NH3 can be produced from 12.0g of H2?
RSB [31]

Answer:

Balanced reaction:

3 H2 (g)  + N2 (g)  → 2 NH3 (g)

Use stoichiometry to convert g of H2 to g of NH3.  The process would be:

g H2 → mol H2 → mol NH3 → g NH3

12.0 g H2 x (1 mol H2 / 2.02 g H2) x (2 mol NH3 / 3 mol H2) x (17.03 g NH3 / 1 mol NH3) = 67.4 g NH3

Explanation: See above

Hope this helps, friend.

8 0
2 years ago
Points
ExtremeBDS [4]
The answer is D. A compound
6 0
3 years ago
Una síntesis industrial del acetileno, gas extensamente utilizado para la fabricación de numerosas drogas, colorantes y plástico
astraxan [27]

Answer:

foot dab lit foot you a foot

3 0
3 years ago
How many liters of CH, gas are in 5.40 moles of CH, gas at STP?<br> (3 sig figs)
charle [14.2K]

Answer:

Try this link https://chem.libretexts.org/Courses/Mount_Aloysius_College/CHEM_100%3A_General_Chemistry_(O'Connor)/08%3A_Solids_Liquids_and_Gases/8.E%3A_Solids_Liquids_and_Gases_(Exercises)

5 0
3 years ago
What would the hydroxide ion concentration be if the hydrogen ion concentration was 1 x 10-3 M?
Sonbull [250]

Answer:

1 x 10⁻¹¹ M

Explanation:

<u>(Step 1)</u>

Determine the pH.

pH = -log[H⁺]

pH = -log[1 x 10⁻³ M]

pH = 3

<u>(Step 2)</u>

Determine the pOH.

pH + pOH = 14

3 + pOH = 14

pOH = 11

<u>(Step 3)</u>

Determine the hydroxide (OH⁻) concentration.

[OH⁻] = 10^-pOH

[OH⁻] = 10⁻¹¹

[OH⁻] = 1 x 10⁻¹¹ M

3 0
2 years ago
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