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PtichkaEL [24]
2 years ago
6

Help pleasee I need help to write the formulas i’m so lost

Chemistry
1 answer:
pishuonlain [190]2 years ago
3 0

Answer:

NH4

Explanation:

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(03.03 MC)
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Answer:

- Carbon shares four of its electrons, and each oxygen shares two of its electrons.

Explanation:

Carbon needs 4 electrons to reach a full outer shell while oxygen needs 2 to reach a full outer shell.

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2 years ago
The upward force that acts on a birds wings due to its flight is called
Radda [10]
The answer is lift. (d)
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3 years ago
A 25.00 ml sample of h3po4 solution is neutralized by exactly 54.93 ml of 0.04345 m ca(oh)2. what is the molarity of the h3po4 s
son4ous [18]
The neutralization equation is:
3 Ca(OH)₂ + 2 H₃PO₄ → Ca₃(PO₄)₂ + 6 H₂O

From this equation we can see that 3 moles of Ca(OH)₂ react with 2 moles of H₃PO₄

Numbers of mmol of Ca(OH)₂ = M x V = 0.04345 x 54.93 = 2.387 mmol

Number of mmol of H₃PO₄ = 2.387 x (2/3) = 1.591 mmol

Molarity of solution = n (mmol) / V(ml) = 1.591 / 25 = 0.0636 M
8 0
3 years ago
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kvasek [131]

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B. Biosphere.

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Is the process by which new mineral grains larger than the original mineral grains form as a result of metamorphic heat?
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Recrystallization is when new mineral grains form as a result of metarmorphic heat that are larger than the original mineral grains. 
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