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3 years ago

Complete and balance this decomposition reaction: HI --->

1 answer:

5 0

In order to balance this, you have to count each element where the elements in the reactants side and the product side should have equal number of molecules. The balanced reaction is as follows:

2HI = H2 + I2

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Answer Liquid water

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3 years ago

Which of the following is true of a balanced equation?

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Answer:

The total number of molecules remains the same

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3 years ago

A fish tank measures 0.40 meter long by 0.20 meter wide by 0.30 meter high. What is the width of the tank in centimeters?

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3 years ago

Why did you test the reaction mixture with starch/iodide paper before starting the separatory funnel steps

-Dominant- [34]

Answer:

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2 years ago

Find the volume of a gas at standard pressure if its volume at 780 mm Hg is 80 ml

Olin [163]

Answer:

0.082L or 82mL

Explanation:

Given parameters:

Pressure of gas = 780mmHg;

760mmHg = 1atm

780mmHg = $\frac{780}{760}$ = 1.03atm

Volume of gas = 80ml = 0.08L

Standard pressure = 1atm

Unknown:

Volume of gas = ?

Solution:

To solve this problem, we apply Boyle's law which states that "the volume of a fixed mass of gas is inversely proportional to the pressure if the temperature is constant".

Mathematically;

P₁ V₁ = P₂ V₂

P and V are temperature values

1 and 2 are initial and final states;

Insert the parameters and solve;

1.03 x 0.08 = 1 x V₂

V₂ = 0.082L or 82mL

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3 years ago