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2 years ago

Need help asap pls

Physics

2 answers:

ozzi2 years ago

8 0

Detailed Explanation:

1) Rusting of Iron

4Fe + 3O2 + 2H2O -> 2Fe2O32H2O

Reactants :-
Fe = 4
O = 3 * 2 + 2 = 8
H = 2 * 2 = 4

Products :-
Fe = 2 * 2 = 4
O = 2 * 3 + 2 = 8
H = 2 * 2 = 4

2) Fermentation of sucrose…

C12H22O11 + H2O -> 4C2H5OH + 4CO2

Reactants :-
C = 12
H = 22 + 2 = 24
O = 11 + 1 = 12

Products :-
C = 4 * 2 + 4 = 12
H = 4 * 5 + 4 = 24
O = 4 * 2 + 4 = 12

Looking closely at the way I have taken the total number of elements on the reactants and products side, you can solve the rest.

All the Best!

liberstina [14]2 years ago

6 0

Answers of guide questions :

Answer 1 : Total mass of the reactants and total mass of the products is equal.

Answer 2 : Yes , all of the chemical reactions given above conformed the Law of Conservation of Mass because total mass of the reactants and total mass of the products is equal.

Answer 4 : Law of Conservation of Mass states that mass can neither be created nor destroyed it always remains constant.

__________________________

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3 years ago

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The work done by the man is the product of his applied force and the displacement of the bag.

<h3>Why the man gets tired</h3>

The man gets tired because his internal energy has be used to do work on the bag.

Thus, the work done by the man is the product of his applied force and the displacement of the bag and the man gets tired because his internal energy has be converted to work.

Learn more about work done here: brainly.com/question/8119756

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1 year ago

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Explanation:

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Explanation:

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3 years ago