Question

the number of atoms on the product side total mass of products. the total amount of moles in the reactants compared to the total amount of moles in the product reaction (will always be the same / may vary) since some atoms may rearrange to form new products.

1. the graph shows the relationship between moles of a reactant and moles of a product formed in a chemical reaction.

which line best depicts how reactant moles affect the moles of the products formed as the reaction progresses?
a. line a c. line c
b. line b d. line d
(___/1pt)

1. the graph shows the amounts of substances versus time for the following chemical reaction:

__n₂o → n₂ + __o₂
reaction type: ____
(___/3 pt)
and give the rxn type. show work for cred

Explanation:

Question 4

Step1: Analyze reactant trend

As reaction proceeds, moles of reactant decrease. So the line for reactant slopes downward.

Step2: Analyze product trend

As reaction proceeds, moles of product increase. So the line for product slopes upward.

Step3: Match to correct line

We need a line that shows decreasing reactant (downward) corresponding to increasing product (upward). Line B shows a downward slope for reactant, which aligns with the consumption of reactant as product forms.

Step1: Balance nitrogen atoms

On the left, there are 2 N in $\text{N}_2\text{O}$. On the right, $\text{N}_2$ has 2 N, so the coefficient for $\text{N}_2\text{O}$ is 2 to get 4 N, and $\text{N}_2$ gets coefficient 2: $2\text{N}_2\text{O}
ightarrow 2\text{N}_2 + \text{O}_2$

Step2: Balance oxygen atoms

Left side (2 $\text{N}_2\text{O}$) has 2 O. Right side $\text{O}_2$ has 2 O, so oxygen is balanced.

Step3: Identify reaction type

One reactant breaks into two simpler products, which is decomposition.

Answer:

B. Line B

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Question 5