3 years ago

Which is the best example of a new substance forming?

2 answers:

8 0

Answer:

lighting a match is the answer.

3 0

Lighting a match is the answer.

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Elan Coil [88]

Answer:

So, 10 mole of water will weigh (18x10) = 180g.

5 0

2 years ago

Colt1911 [192]

Answer:

Explanation:

[Rn] 7s25f6d4

*-*

4 0

3 years ago

san4es73 [151]

The statement is true.

6 0

3 years ago

kolezko [41]

It would be probably most likely B

3 0

3 years ago

zlopas [31]

Answer:

$m_{Sn}=630.57gSn$

Explanation:

Hello!

In this case, according to the chemical reaction:

$SnO_2+2H_2\rightarrow Sn+2H_2O$

We can evidence the 2:1 mole ratio between hydrogen and tin, thus, we perform the following stoichiometric setup to obtain the mass of produced tin:

$m_{Sn}=21.46gH_2*\frac{1molH_2}{2.02gH_2}*\frac{1molSn}{2molH_2} *\frac{118.71gSn}{1molSn} \\\\m_{Sn}=630.57gSn$

Best regards!

7 0

3 years ago