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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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2 years ago

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Answer:

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3 years ago

We dont got the force so i got no clue what to do

konstantin123 [22]

Answer:

work = 1275.3 J

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3 years ago

A bullet fired horizontally hits the ground in 0.5 sec. If it had been fired with a much higher speed in the same direction, and

stira [4]

Answer:

3. 0.5 sec.

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A bullet fired horizontally follows a projectile motion, which consists of two independent motions:

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The time taken for the bullet to reach the ground can be calculated just by considering the vertical motion:

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3 years ago

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elena-s [515]

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3 years ago

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