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hjlf
2 years ago
5

Help!!!

Chemistry
1 answer:
TEA [102]2 years ago
4 0
Is b decrease because it is right
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Josh's force is 900 N.

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Explanation:

Josh scores the touchdown as he is heavier and faster than Donald.

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3 years ago
Give the word equation for the neutralization reaction of an acid and a base.
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3 years ago
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3 years ago
A) What mass in grams of H20 is needed to react completely with 40.0 g of
Step2247 [10]

Answer:

m_{H_2O}=9.24gH_2O

Explanation:

Hello there!

In this case, since there is a 2:2 mole ratio between sodium peroxide and water according to the given reaction, it is possible to apply the following stoichiometric setup for the calculation of the required mass of water:

m_{H_2O}=40.0gNa_O_2*\frac{1molNa_O_2}{78gNa_O_2}*\frac{2molH_2O}{2molNa_O_2}  *\frac{18.02gH_2O}{1molH_2O} \\\\m_{H_2O}=9.24gH_2O

Best regards!

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2 years ago
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