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Tomtit [17]
3 years ago
15

Using water, how could you distinguish between the white solids NaCl and BaCO3?

Chemistry
1 answer:
sergij07 [2.7K]3 years ago
5 0
Start with 0.5 g of each - place each in a separate 20 ml beaker containing 10 cc water. Swirl each beaker to dissolve the solids - The KCl will dissolve completely - the lead salt will not.
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Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be
Sphinxa [80]

Answer:

P_4_{(I)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}

Explanation:

The first step is:

P_4_{(I)}+5O_2_{(g)}\rightarrow 2P_2O_5_{(g)}

Second step is:

P_2O_5_{(g)}+3H_2O_{(l)}\rightarrow 2H_3PO_4_{(l)}

Multiplying second step by 2, and adding both the steps, we get that:

P_4_{(I)}+5O_2_{(g)}+2P_2O_5_{(g)}+6H_2O_{(l)}\rightarrow 2P_2O_5_{(g)}+4H_3PO_4_{(l)}

Cancelling common species, we get that:

P_4_{(l)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}

6 0
3 years ago
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Talja [164]
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5 0
3 years ago
Why is methane, CH4, a nonpolar compound?
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6 0
2 years ago
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Answer:

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8 0
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Answer:

hope this helps

Explanation:

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3 years ago
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