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kumpel [21]
3 years ago
12

What is the melting point of silcon 4 oxide​

Chemistry
1 answer:
Burka [1]3 years ago
3 0

Answer:

Silicon dioxide/Melting point

3,110°F

1,710°C

Explanation:

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Which is the formula for magnesium nitride?
Mekhanik [1.2K]

Explanation:

Mg₃N₂ is the formula of magnesium nitride.

5 0
3 years ago
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If the concentration of the stock (provided) Cu(NH3)42 was 0.041 M, what concentration will the Cu2 be in beaker?
kodGreya [7K]

Answer:

[Cu^{2+}]=0.041 M

Explanation:

Hello!

In this case, since the molarity of a solution is defined in terms of the moles of the solute and the volume of solution, given that the concentration of Cu(NH₃)₄²⁺ is 0.041 M, and there is only one copper atom per Cu(NH₃)₄²⁺ ion, we can compute the concentration of Cu²⁺ as shown below:

[Cu^{2+}]=0.041\frac{molCu(NH_3)_4^{2+}}{L}*\frac{1molCu^{2+}}{1molCu(NH_3)_4^{2+}} =0.041 \frac{molCu(NH_3)_4^{2+}}{L}

[Cu^{2+}]=0.041 M

Best regards!

6 0
2 years ago
H2SO4(aq)+LiOH(aq)→ Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if t
kifflom [539]

Answer:

H₂SO₄ (aq) + 2LiOH (aq) ⇒ Li₂SO₄ (aq) + 2H₂O (l)

Explanation:

This is an acid-base reaction, so we know the products are going to a salt/ionic compound and water.

7 0
3 years ago
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If 2.00 g of N2 occupies 1.25 L space, how many moles of N2
uranmaximum [27]

Answer:

n₂ =1.4 mol

Explanation:

Given data:

Mass of nitrogen = 2 g

Initial Volume occupy by nitrogen = 1.25 L

Final volume occupy by nitrogen = 25.0 L

Final number of moles = ?

Solution;

Formula:

V₁ / n₁ = V₂ / n₂

Number of moles of nitrogen:

Number of moles = mass/ molar mass

Number of moles = 2 g/ 28 g/mol

Number of moles = 0.07 mol

Now we will put the values in formula:

V₁ / n₁ = V₂ / n₂

n₂ = V₂× n₁ /V₁

n₂ = 25 L × 0.07 mol /  1.25 L

n₂ = 1.75 L. mol / 1.25 L

n₂ =1.4 mol

7 0
3 years ago
If you have 35.255 g of pure H2O in a water bottle, how much of that 35.255 g is mass due to Oxygen atoms? (only put a number fo
Nataly_w [17]

Answer:

16/18 = % O   2/18 =% H

Explanation:

35.255 x16/18=31.34  O

35.255 X 2/18 = 3.92 H

8 0
3 years ago
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