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nasty-shy [4]
3 years ago
13

How does the rate of a reaction change after a catalyst is added

Chemistry
1 answer:
Anettt [7]3 years ago
7 0

Answer:

by reducing the activation energy or changing the reaction mechanism.

Explanation:

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The equation below shows lithium reacting with nitrogen to produce lithium nitride. 6Li + N2 mc007-1.jpg 2Li3N If 12 mol of lith
andrew11 [14]

Answer is: 4.0 mol of lithium nitride would be produced.

Balanced chemical reaction: 6Li + N₂ → 2Li₃N.

n(Li) = 12 mol; amount of substance.

From chemical reaction: n(Li) : n(Li₃N) = 6 : 2 (3 : 1).

n(Li₃N) = n(Li) ÷ 3.

n(Li₃N) = 12 mol ÷ 3.

n(Li₃N) = 4 mol; amount of lithium nitride.

4 0
3 years ago
Read 2 more answers
TRUE or FALSE: Any measurement that has been cubed is volume.
zmey [24]

Answer:

True

Explanation:

Volume is measured in "cubic" units. The volume of a figure is the number of cubes required to fill it completely, like blocks in a box. Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed.

7 0
3 years ago
352 mL of chlorine exerts a pressure of 680 mmHg. What will the volume
Drupady [299]

Answer:

The answer would be 0.198 liters.

Explanation:

Message me for any questions.

7 0
3 years ago
A 1.900 g sample of C6H12 is burned in an excess of oxygen. What mass of C)2 and H20 should be obtained
Alexeev081 [22]
The balanced chemical reaction is:

<span>C6H12 + 9O2 = 6CO2 + 6H2O

We are given the amount of </span><span>C6H12 to be used for the reaction. THis will be the starting point for the calculations.

1.900 g </span>C6H12 ( 1 mol C6H12/ 84.18 g C6H12) ( 6 mol CO2 / 1 mol <span>C6H12) (44.01 g /mol ) = 5.96 g CO2
</span>1.900 g C6H12 ( 1 mol C6H12/ 84.18 g C6H12) ( 6 mol H2O / 1 mol <span>C6H12) (18.02 g /mol ) =  2.44 g H2O
</span>
6 0
3 years ago
8. How many protons are in C-12? C-13? C-14?
NISA [10]
C-12? (6 protons) C-13? (6 protons) C-14? (6 protons)

5 0
3 years ago
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