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Ann [662]
3 years ago
9

According to the law of conservation of energy, the energy released by the system must be transferred to and absorbed by the sur

roundings
Chemistry
1 answer:
Andrew [12]3 years ago
5 0
True! 
 Energy released by system is absorbed by surroundings.
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9. Sodium reacts with water to produce sodium hydroxide and hydrogen gas, as shown below.
saveliy_v [14]

Answer:

B

Explanation:

2Na + 2H2O2==NaOh + H2

184/23=x/18

x=(184×18)/23

x=144g

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3 years ago
Grace runs 6miles in 2 hours what is her speed??
MAXImum [283]
Speed = miles / time
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barxatty [35]
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8 0
3 years ago
Which of these elements is the most reactive
mr_godi [17]

Answer:

What elements?

Explanation:

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Not sure if this what you were talking about but here

This from google btw not gonna lie

7 0
3 years ago
Which is the most likely to be reduced?
NISA [10]

Answer : The correct option is, Zn^{2+}

Explanation :

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Or we can say that, oxidation reaction occurs when a reactant losses electrons in the reaction.

  • Reduction reaction : It is defined as the reaction in which a substance gains electrons. That means, the gain of electrons takes place.

Or we can say that, reduction reaction occurs when a reactant gains electrons in the reaction.

According to the electrochemical series, Zn^{2+} most likely to be reduced because

Hence, the ion most likely to be reduced is Zn^{2+}.

3 0
2 years ago
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