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kotegsom [21]
3 years ago
12

When dynamic equilibrium is achieved, the rate of the forward and backward reactions go to zero. (T&F)

Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Answer:

1) False

2) there are equal amounts of rectants and products

Explanation:

1)  When dynamic equilibrium is achieved. the rate of forward and backward reaction they are the same, that is to say, two opposite reactions occur at the same rate, keeping the concentrations constant over time.  Different to say the rate of the ractions go to zero.

2)  A chemical equilibium exists when what is produce in quantities is equal to what reacts.

So the correct answer is the literal (d).

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A compound has the formula X2O3 where x is an unknown element. If the compound is 24.26% oxygen, what element does x represent?
Vinil7 [7]
<h3>Answer:</h3>

Element X is Arsenic (Ar)

<h3>Explanation:</h3>

We are given the compound X₂O₃

The compound is 24.26% Oxygen

We are required to identify element X

<h3>Step 1: Determine the mass of Oxygen in the compound </h3>

Atomic mass of Oxygen is 16.0 g

There are three oxygen atoms in the compound

Therefore;

Mass of oxygen in the compound = 3 × 16

                                                        = 48 g

<h3>Step 2: Total mass of the compound </h3>

Total percentage = 100%

But, Oxygen in the compound  is 24.26 % and has a mass of 48 g

Therefore;

Mass of the compound = (48 g ÷ 24.26 ) × 100

                                      = 197.857 g

<h3>Step 3 mass of X in the compound </h3>

Since we know the mass of oxygen in the compound and the mass of the compound we can determine the mass of X

Mass of X in the compound = Mass of the compound - Mass of Oxygen in the compound

                                               = 197.857 g - 48 g

                                               = 149.857 g

But there are two atoms of X in the compound.

Therefore, molar mass of X = 149.857 g ÷ 2

                                             = 74.929 g

<h3>Step 4: Identity of element X</h3>

We then we need to identify the element with a molar mass of 74.929 g

Therefore, the element represented above is Arsenic which has an atomic mass of 74.92.

Thus, our compound is Ar₂O₃

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3 years ago
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Answer:

a) no

b) no

c) yes

d) yes

Explanation:

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Answer:

because they emit liquid waste wich is later dumped into the ocean causing a lot of harm and many fatalities in sea life

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