3 years ago

Explain why chemical equations have to be balanced

2 answers:

5 0

Chemical equations are to be balanced to be able to follow the law of conservation of mass where it says that mass cannot be created or destroyed. Reactions should be that the mass of the reactants is equal to the mass of the products.

PolarNik [594]3 years ago

5 0

Answer:

Explanation:

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The Law of Multiple Proportions states that ____.

harkovskaia [24]

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3 years ago

A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A

Varvara68 [4.7K]

Since water is already at 100°C all the energy is used to evaporate it.
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During a lab, a student holds a magnesium ribbon in a flame. Which of the following is the magnesium ribbon considered?

Aleks [24]

It will be B trust me

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Is it necessary to prepare sodium extract to detect nitrogen in urea ?

Vilka [71]

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I think No

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