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Komok [63]
2 years ago
6

If a body is buried, the process of complete _____ can take up to two years to complete.

Chemistry
2 answers:
EastWind [94]2 years ago
4 0
I think it’s number 3
enot [183]2 years ago
3 0

Answer: 4. Putrefaction

Explanation:

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During a synthesis reaction, 1.8 grams of magnesium reacted with 6.0 grams of oxygen. What is the maximum amount of magnesium ox
skelet666 [1.2K]

Answer:

2.9 grams.

Explanation:

  • From the balanced reaction:

<em>Mg + 1/2O₂ → MgO,</em>

1.0 mole of Mg reacts with 0.5 mole of oxygen to produce 1.0 mole of MgO.

  • We need to calculate the no. of moles of (1.8 g) of Mg and (6.0 g) of oxygen:

no. of moles of Mg = mass/molar mass = (1.8 g)/(24.3 g/mol) = 0.074 mol.

no. of moles of O₂ = mass/molar mass = (6.0 g)/(16.0 g/mol) = 0.375 mol.

<em>So. 0.074 mol of Mg reacts completely with (0.074/2 = 0.037 mol) of O₂ which be in excess.</em>

<em></em>

<em><u>Using cross multiplication:</u></em>

1.0 mole of Mg produce → 1.0 mol of MgO.

∴ 0.074 mol of Mg produce → 0.074 mol of MgO.

<em>∴ The amount of MgO produced = no. of moles x molar mass </em>= (0.074 mol)(40.3 g/mol) = <em>2.98 g.</em>

5 0
3 years ago
Physical or chemical change? <br> Red and blue food coloring mix to make purple.
aev [14]

Answer:

chemical change

Explanation:

because physical is like if something is happening inside your body

BTW

I hope this helps

8 0
2 years ago
Please help! Question is on the bottom​
choli [55]
It’s extremely bad quality I really can’t read it
8 0
3 years ago
(pls help)
WITCHER [35]
Anthony’s because it explains way more
8 0
2 years ago
(Please Help)
Marianna [84]

Answer:

B

Explanation:

Trust me I've had problems like these

6 0
3 years ago
Read 2 more answers
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