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2 years ago

Suppose you rolled a twelve-sided number cube

Chemistry

2 answers:

ser-zykov [4K]2 years ago

7 0

Answer:

The theoretical probability of landing on a star space on your first roll . ''decrease''

The theoretical probability of not landing on a question mark on your first roll . ''increase''

The theoretical probability of reaching the end space on your first roll "does not change''

Explanation:

san4es73 [151]2 years ago

5 0

Answer:

The theoretical probability of landing on a star space on your first roll . ''decrease''

The theoretical probability of not landing on a question mark on your first roll . ''increase''

The theoretical probability of reaching the end space on your first roll "does not change''

Explanation:

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For the reaction: N2O5(g) \longrightarrow&longrightarrow; 2NO2(g) + 1/2O2(g)

ivanzaharov [21]

The given equation from the problem above is already balance,
N2O5 ---> 2NO2 + 0.5O2
Since, in every mole of N2O5 consumed, 2 moles of NO2 are formed, we can answer the problem by multiplying the given rate, 7.81 mol/L.s with the ratio.
(7.81 mol/L.s) x (2 moles NO2 formed/ 1 mole of N2O5 consumed)
= 15.62 mol/L.s
The answer is the rate of formation of NO2 is approximately 15.62 mol/L.s.

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2 years ago

A precipitate is a solid that sometimes forms when two liquids combine. A true B False

r-ruslan [8.4K]

<h2>Question:</h2>

A precipitate is a solid that sometimes forms when two liquids combine.

<h2>Answer:</h2>

A. True 

<h2>Explanation:</h2>

Because the Precipitate it's forms solid when two liquids combine to precipitate.

<h2>#CARRYONLEARNING </h2><h2>#STUDYWELL </h2>

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2 years ago

Read 2 more answers

The atoms, molecules, or compounds present at the start of a chemical reaction that participate in the reaction.

Art [367]

For the first one the answer is B. and the second one is D.

4 0

2 years ago

Read 2 more answers

How many atoms in 2.25 mol of O2

Luden [163]

Answer:

1 molecule of oxygen has 2 atoms.

So 2,25 molecules of oxygen have 2 x 2,25 atoms.

2 x 2,25 = 4,5 atoms

There are 4,5 atoms in 2,25 molecules oxygen.

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2 years ago

What could you predict about a methane molecule that would most likely be made by using both the quantum model of the atom and J

Svetlanka [38]

By using the quantum model of the atom and John Dalton's model you can predict that the methane molecule will most likely be made up of Hydrogen and Carbon.

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2 years ago