3 years ago

PLEAEEEE HELPPP

1 answer:

8 0

Speed is a scalar quantity( quantity having only magnitude). So it doesn't specifies direction. Hence option C.) 5Km/hr north is incorrect.

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Use the periodic table to write the electron configuration of selenium (Se). s s p d 1 2 3 4 6 10

maw [93]

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Explanation:

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3 years ago

Question 4 point

Ronch [10]

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Explanation:

Hello there!

In this case, for the described chemical reaction, we can write:

$CH_4+2O_2\rightarrow CO_2+2H_2O$

Thus, by considering the 1:2 mole ratio of methane to water, and the molar mass of the latter (18.02 g/mol), the following is useful to calculate the mass of water that is produced:

$149.65molCH_4*\frac{2molH_2O}{1molCH_4} *\frac{18.02gH_2O}{1molH_2O}$

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Regards!

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3 years ago

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Yanka [14]

Ni = Nickel
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